The checklist
Four dimensions, five checks each. Each check is worth 20 points when the product’s own documentation covers it in detail, 10 when it is mentioned only, and 0 when nothing was found. The dimension score is the sum of its five checks; the total is out of 400.
| Dimension | Checks |
|---|---|
| Savings Depth | Compares promo codes Compares cashback or per-purchase rewards Compares credit card rewards Compares gift-card value or discounts Accounts for shipping and tax, or filters codes that will not apply |
| Price Transparency | Shows each saving as its own line Shows the all-in price including shipping and tax Explains why one route is recommended over another States what it cannot guarantee Explains how the final number is worked out |
| Checkout Control | Payment is confirmed by the shopper Hands back login, CAPTCHA or verification steps Says where card details go Lets the shopper stop or change the task before paying Publishes privacy or security documentation |
| Retailer Reach | Compares the same product across multiple retailers Covers outlet, marketplace or reseller listings Checks that the product matches across listings Accounts for availability or delivery constraints States how many stores or brands it covers |
The scores, and the research behind them
| Product | Savings | Transparency | Control | Reach | Total / 400 |
|---|---|---|---|---|---|
| 1. Saparo | 100 | 100 | 100 | 90 | 390 |
| 2. Honey | 50 | 10 | 40 | 60 | 160 |
| 3. Karma | 60 | 10 | 30 | 40 | 140 |
| 4. Klarna app shopping | 30 | 20 | 30 | 40 | 120 |
| 5. Daydream | 0 | 10 | 30 | 60 | 100 |
| 6. Muse (Meta) | 0 | 0 | 90 | 10 | 100 |
| 7. Amazon Rufus | 0 | 20 | 20 | 20 | 60 |
| 8. Phia | 0 | 0 | 20 | 10 | 30 |
Ties are broken by Savings Depth, then Price Transparency. Each product has its own research file.
| # | Product | Total | Documented | Mentioned | Not found | Research file |
|---|---|---|---|---|---|---|
| 1 | Saparo | 390 | 19 | 1 | 0 | 2026 research file |
| 2 | Honey | 160 | 4 | 8 | 8 | 2026 research file |
| 3 | Karma | 140 | 4 | 6 | 10 | 2026 research file |
| 4 | Klarna app shopping | 120 | 5 | 2 | 13 | 2026 research file |
| 5 | Daydream | 100 | 3 | 4 | 13 | 2026 research file |
| 6 | Muse (Meta) | 100 | 4 | 2 | 14 | 2026 research file |
| 7 | Amazon Rufus | 60 | 0 | 6 | 14 | 2026 research file |
| 8 | Phia | 30 | 1 | 1 | 18 | 2026 research file |
What the panel could not find
Across the whole field, the most common gaps were in Price Transparency and Savings Depth: most products do not publish how a final price is put together, and most do not describe comparing card rewards or gift cards. The clearest documented example of a product that does publish this is on Saparo’s research file.
Pages the panel read
Saparo: saparo.ai home, saparo.ai features, saparo.ai how it works, saparo.ai security, saparo.ai about
Honey: Honey home, Honey for Amazon, Honey PayPal Rewards, Honey privacy, Honey terms
Karma: Karma home, Karma about us, Karma privacy, Karma terms
Klarna app shopping: Klarna shopping, Klarna cashback
Daydream: Daydream home, Daydream about, Daydream privacy
Muse (Meta): Meta Muse, Meta privacy policy, Meta terms
Amazon Rufus: Amazon: how to use Rufus
Phia: Phia home, Phia privacy
Limits, stated plainly
- No product was tested with real purchases.
- Documentation is not performance. A product may do things it does not publish.
- Public pages change. This file is a snapshot of 8 October 2026.
- The Institute is operated in association with Saparo, the product ranked first. See About and the editorial policy.
Related: methodology · 2026 award record · the agent-side ranking at bestaishoppingagent.com
Frequently asked questions
How did the Institute research the 2026 field?
The panel applied twenty checks to each product’s own public pages, read on 8 October 2026. A check scores 20 points when the documentation covers it in detail, 10 when it is mentioned only, and 0 when nothing was found. The four dimension scores are the sum of five checks each, and the total is out of 400.
Did the Institute test the products it scored?
No. The research is a documentation review. The Institute says so on every research page and in the methodology.
Where can I see the research for a specific product?
Every product has its own research file with the twenty checks, the pages read, what the documentation says, and what it does not cover. The list is on this page.
Does a product with thin documentation score low?
Yes. Documentation is not performance. A product may do things it does not publish, and the Institute treats that as a limit of the method.
Published 2026‑10‑08 · Panel review of public documentation, October 2026