PrivateID Authenticator vs Shelf Image Recognition
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrivateID Authenticator
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Decentralized biometrics using fully homomorphic encryption Private Identity® provides extremely fast, accurate, and efficient face, voice, and fingerprint solutions on browsers, phones, platforms, and clouds with full privacy.
Shelf Image Recognition
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Capture and analyze retail shelves with precision. Streamline shelf audits and boost in-store execution through fast, accurate image recognition. Quickly snap individual photos of any shelf section. Take multiple photos to seamlessly cover the entire shelf length. Send your images for automated, high-accuracy recognition. Receive detailed recognition results.
Screenshots
Verdict
The clearest difference is update cadence: PrivateID Authenticator at every 2 weeks against Shelf Image Recognition's every 3 months. Shelf Image Recognition's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PrivateID Authenticator ships an update every 2 weeks, Shelf Image Recognition every 3 months. The most recent releases landed on September 16, 2026 and September 5, 2026 respectively.
| Parameter | PrivateID Authenticator | Shelf Image Recognition |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | PRIVATE IDENTITY LLC | SoftServe Business Systems |
In-app purchases
PrivateID Authenticator
No in-app purchases
Shelf Image Recognition
No in-app purchases
Questions
Is PrivateID Authenticator free?
Is Shelf Image Recognition free?
Do PrivateID Authenticator or Shelf Image Recognition have ads?
Which is updated more often, PrivateID Authenticator or Shelf Image Recognition?
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