iWave vs DonorSearch (2026): The Kindsight Merger Changes This Comparison

Search for iWave vs DonorSearch and the top results are the two vendors arguing about each other. Kindsight (which now owns iWave) hosts a comparison page scoring itself 96 against DonorSearch’s 66. DonorSearch returns the favor with its own attack page. Neither tells you the thing that actually changed this comparison: iWave is not a standalone company anymore.

Since the February 2024 merger with UC Innovation, iWave is the prospect-research module of the Kindsight platform, sitting alongside the ascend CRM and the Engage generative AI layer. DonorSearch is still what it has always been: a standalone screening database with a predictive scoring product bolted on top. So in 2026 you are not comparing two similar tools. You are comparing a platform module against an independent specialist, and which one fits depends heavily on your org size and what CRM you already run.

We spent time in both, read the fine print on both vendor pages, and built the decision matrix we wished existed. Here is the honest version.

---

iWave vs DonorSearch at a glance

Factor	iWave (Kindsight)	DonorSearch
What it is in 2026	Prospect-research module of the Kindsight platform (with ascend CRM and Engage AI)	Standalone prospect screening and wealth data platform
Company status	Merged with UC Innovation into Kindsight, Feb 2024	Independent, founded 2007
Published pricing	Starter from $4,500 per year (live Kindsight page)	None. Quote-only
AI layer	Engage, generative AI from the NonprofitOS acquisition (Oct 2023)	DonorSearch Ai, predictive ML with MLR scoring
Headline AI claim	AI-assisted profiles and donor outreach content	81% repeat-donor accuracy, up to 85% response lift (vendor-claimed)
Data scale claim	Billions of wealth and philanthropy records (vendor-claimed)	1B+ philanthropic data points, 13,000+ customers (vendor-claimed)
Scoring approach	Configurable propensity, affinity, and capacity scores you can tune	Pre-built philanthropy-first scores plus ML-driven MLR
CRM situation	Strong pull toward the ascend CRM (built on Salesforce)	CRM-agnostic, integrates widely
Best fit	Mid-size to large orgs open to platform consolidation	Orgs of any size keeping their existing CRM

Both data-scale rows above are vendor-claimed, and we have not found an independent audit of either database. Keep that in mind whenever a rep quotes record counts at you.

---

The merger context: what buying iWave actually means now

This is the part both vendor comparison pages underplay, so let us spell it out.

In October 2023, iWave acquired NonprofitOS, a generative AI startup, and rebranded it as Engage. Four months later, in February 2024, iWave and UC Innovation (the company behind the ascend CRM, built on Salesforce) merged to form Kindsight. iwave.com now 301-redirects to kindsight.io. iWave the product survived, but iWave the company did not.

Practically, that changes three things for a buyer:

1. The sales conversation is a platform conversation. You may come in asking about wealth screening and leave with a pitch deck covering ascend CRM migration and Engage AI content generation. That is not sinister, it is just what platform companies do. Budget your evaluation time accordingly.
2. The roadmap serves the platform. Kindsight’s stated direction is an integrated intelligence-CRM-AI suite. If you only ever want the screening module, you are buying a slice of something bigger, and future development effort follows the suite strategy.
3. The upside is real if you want consolidation. If you are shopping for a CRM anyway, or your current donor database is a spreadsheet held together with hope, getting research, CRM, and AI generation from one vendor has genuine appeal. We cover how that stack fits together in our guide to AI for major gift fundraising.

DonorSearch, meanwhile, made the opposite bet: stay independent, stay CRM-agnostic, and go deep on predictive modeling. Neither strategy is wrong. They just suit different buyers.

---

Kindsight iWave: the prospect-research module

What it does

iWave inside Kindsight is still the research analyst’s tool it built its reputation on: wealth screening, prospect profiles, and capacity ratings across public wealth records, real estate, securities filings, and philanthropic giving history. You can screen a list in batch or build a profile on one person, and the output is a scored, sourced dossier.

The two things that distinguish it in 2026:

• Configurable scoring. iWave lets you tune how propensity, affinity, and capacity weight into the final score. A hospital foundation that cares about grateful-patient affinity can weight differently than a university chasing alumni capacity. Most competitors hand you a fixed formula.
• Engage, the gen AI layer. Born as NonprofitOS and acquired in October 2023, Engage drafts donor-facing content and summarizes research profiles. In our runs it was a competent first-draft machine: fine for a profile summary you will edit, not something we would send to a major donor unreviewed.

Hands-on observations

The profile depth is the standout. Give it a real prospect and you get securities holdings, property records, foundation ties, and giving history in one view, with sources cited so your researcher can verify. The interface assumes a trained user; a volunteer coordinator dropped into iWave cold will drown in tabs. Batch screening worked as advertised, though de-duplicating messy CRM exports before upload remains on you.

Pricing

This is the rare corner of the category with a published number: Kindsight’s live pricing page lists the iWave Starter tier from $4,500 per year. Worth knowing: several aggregator sites still circulate $4,150, a stale figure that contradicts the live vendor page. If a reseller or a roundup quotes you $4,150, they are working from old data. Full tier-by-tier math, seat costs, and what to negotiate are in our iWave pricing breakdown.

Who it’s for

Mid-size and large nonprofits, universities, and healthcare foundations with at least one person who does prospect research as a real part of their job, especially orgs open to (or actively shopping for) the wider Kindsight platform.

One honest limitation

The platform gravity. Standalone iWave buyers are now a secondary audience by structure: the merger exists to sell an integrated suite, and if you have zero interest in ascend or Engage, you are paying attention tax on features you will decline in every renewal conversation.

---

DonorSearch: the standalone screening specialist

What it does

DonorSearch is a prospect screening platform built on a philanthropy-first thesis: past giving predicts future giving better than wealth alone. The company claims more than 1 billion philanthropic data points and 13,000+ nonprofit customers (both vendor-claimed figures). Screens return capacity markers plus deep charitable-giving history: who gave, to what, and how often.

The differentiator is DonorSearch Ai, the machine-learning product on top of the database. Its flagship output is MLR, a Most Likely to Respond score that ranks your file by who will actually answer an appeal. DonorSearch claims 81% accuracy at predicting repeat donors and up to an 85% lift in response rates. Both numbers are vendor-claimed, and we have not seen an independent validation, but the underlying approach (training models on your donor file plus their giving database) is sound and mirrors what expensive consultants used to do by hand.

Hands-on observations

The giving-history data is the best we have seen in this category; where iWave profiles shine on wealth breadth, DonorSearch profiles shine on philanthropic depth. The interface is dated in places, and some workflows feel like enterprise software from a previous decade. Integration coverage is wide because CRM-agnosticism is the whole strategy: DonorSearch has to play nicely with everyone’s CRM, and it largely does. Our full DonorSearch review covers the feature set and verdict in depth; this page stays focused on the head-to-head.

Pricing

Quote-only, full stop. DonorSearch publishes no pricing, and any specific figure you see on an aggregator is reported, not official. Do not assume quote-only means cheaper than iWave’s $4,500 floor; in our experience it usually signals the opposite for full-platform deals. What is known, what is reported, and how to structure the sales call are in our DonorSearch pricing guide.

Who it’s for

Organizations that like their current CRM and want the deepest philanthropy-first screening layered on top, plus annual-fund teams who can act on MLR scoring, which is genuinely more actionable for appeal segmentation than a raw capacity number.

One honest limitation

Pricing opacity. You cannot budget for DonorSearch without a sales call, you cannot benchmark your quote against a public rate card, and renewal negotiations happen in the dark. For a category-defining vendor, that is a deliberate choice, and it costs buyers real leverage.

---

How the scoring engines actually differ

Both vendors will tell you they have AI. The word hides two very different machines, and the difference matters more than the marketing.

iWave’s scoring is fundamentally configurable analytics. Propensity, affinity, and capacity are computed from wealth and giving records, and you control the weights. That makes it a researcher’s instrument: the score means what your team decides it means, which is powerful if you have someone who understands the levers and noise if you do not. Engage, the generative layer, sits apart from scoring entirely. It writes and summarizes; it does not predict.

DonorSearch Ai is the reverse shape: predictive first, generative nowhere. MLR is a trained model output, not a weighted formula, so you cannot tune it, but you also cannot mis-tune it. You hand it your file, it hands back a ranked list. For an annual-fund manager without a research department, that opacity is a feature. For a major-gifts researcher who wants to know why a prospect scored high, it can frustrate, since model reasoning is not something you can audit line by line.

The practical test we suggest: ask each vendor to score the same 200 records from your file during the pilot, then check the top 20 against what your gift officers already know. In our experience that one exercise exposes more about fit than every feature grid combined. It also surfaces data hygiene problems on your side before they become billable ones.

---

Decision matrix: which one fits your org

Same question, four different answers depending on where you sit. Find your row.

Your situation	Lean iWave (Kindsight)	Lean DonorSearch	Why
Small shop, under ~$1M raised, no dedicated researcher		✓	Neither is cheap, but DonorSearch screening plus your existing CRM beats paying platform gravity you will not use. Also consider lighter tools first.
Mid-size org, happy with Bloomerang, Neon, DonorPerfect, or Virtuous		✓	CRM-agnostic by design. You keep your stack and add the screening layer that integrates with it.
Mid-size to large org, CRM shopping or CRM pain	✓		The Kindsight bundle (iWave + ascend + Engage) turns two procurement projects into one, and consolidation discounts are negotiable.
University or hospital foundation with a research team	✓		Configurable scoring and profile depth suit trained researchers, and ascend’s Salesforce base fits advancement-office IT standards.
Annual fund team optimizing appeals, not major gifts		✓	MLR scoring is built for exactly this: rank the file by response likelihood and mail smarter (81% accuracy claim is vendor-claimed).
Salesforce-native org	✓		ascend is built on Salesforce, so the platform story is coherent rather than bolted on. Still evaluate DonorSearch’s Salesforce integration as the counterfactual.

---

What we would negotiate with either vendor

Both of these are annual contracts with real money attached, so treat the sales call like the negotiation it is.

• With Kindsight: ask what the standalone iWave price is with zero platform components, then ask what the bundle costs. The gap is your leverage. Push back on multi-year lock-ins until you have run one real screening cycle.
• With DonorSearch: get the quote itemized (base screening, DonorSearch Ai, integrations, records volume) so you can cut modules instead of haggling on a blob. Ask directly what happens to per-record pricing at renewal.
• With both: demand a pilot on your actual file, not a demo on theirs. Screening quality on 200 of your real donors tells you more than any comparison page, including this one.

If you are earlier in the journey and not sure you need enterprise screening at all, start with our overview of AI donor research tools and the broader donor intelligence explainer. And note the scope line: this page compares screening platforms. The donor-intelligence overlay category (led by our editorial pick there, Gratefully) is covered separately in our best AI donor intelligence tools roundup.

---

Verdict

There is no single winner, and anyone declaring one without asking about your CRM is selling something.

Choose iWave (Kindsight) if you want platform consolidation, have trained researchers who will exploit configurable scoring, or are Salesforce-native and CRM shopping anyway. You get a published $4,500 starting price, real profile depth, and a gen AI layer, at the cost of platform gravity pulling every conversation toward the full suite.

Choose DonorSearch if you are keeping your CRM and want the deepest philanthropic-giving data plus ML scoring aimed at response behavior. You get CRM-agnostic flexibility and the MLR score annual-fund teams actually use, at the cost of quote-only pricing and a dated interface in spots.

Whichever way you lean, read the money pages before the sales call: iWave pricing and DonorSearch pricing. Walking in knowing the published floor and the reported ranges is the cheapest advantage you will get in this category.