Pupil.Size vs Pupil Detection
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pupil.Size
This utility app uses your device's camera to measure pupil diameter in real time. It's designed for quick and easy pupil size analysis.
- Real-time pupil diameter measurement
- Uses device camera
- Pupil size analysis
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Pupil.Size is an application which can measure the diameter of a pupil in real time using iPod touch camera.
Pupil Detection
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Detect and track pupils.
Screenshots
Verdict
The clearest difference is ads: Pupil.Size at none against Pupil Detection's shown. Pupil.Size also leads on iOS requirement (11.0 vs 17.7.2). Pupil Detection's advantage is update cadence (every 2 weeks vs every 2 months). On price, 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.
Pupil.Size ships an update every 2 months, Pupil Detection every 2 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | Pupil.Size | Pupil Detection |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.7.2 |
| Further details — not scored | ||
| Size | 1 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | SCALAR CORP. | Hideaki Uchikoshi |
In-app purchases
Pupil.Size
No in-app purchases
Pupil Detection
No in-app purchases
Questions
Is Pupil.Size free?
Is Pupil Detection free?
Do Pupil.Size or Pupil Detection have ads?
Which is updated more often, Pupil.Size or Pupil Detection?
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