Comparison

Pupil.Size vs Mollu

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Real-time pupil diameter measurement
  • Uses device camera
  • Pupil size analysis
Features
Read full description

Pupil.Size is an application which can measure the diameter of a pupil in real time using iPod touch camera.

About

Mollu

Read full description

Japanese games, Chinese shopping apps, posts from anywhere. Translate your screen, or the text in front of you, right where it is. Mollu reads the text in a screenshot or a photo you take and draws the translation over the original text, so the screen still looks like the app you were using. No copying, pasting, or switching apps. ■ Great for Games and manga from abroad, foreign social media and forums, product pages on overseas stores, chats with friends overseas, menus and signs while traveling, and settings screens in other languages. ■ One press to translate Assign it to the Action button, AssistiveTouch (a floating on-screen button), Control Center, or Siri. Whatever app you're in, the translated screen appears instantly, and closing it takes you right back. On iPhone models without the Action button and on iPad, one tap on AssistiveTouch does it; on iPad, Apple Pencil Pro squeeze works too. ■ Snap to translate Take a photo of a menu, sign, or ticket and the translation opens right away. Tilted text is translated at the right angle, line by line, and tables are translated cell by cell. Move in close and the camera switches to ultra-wide macro automatically (on supported models), and you can pinch to zoom. Open Translate with Camera straight from Siri, Spotlight, or Shortcuts. ■ In place, naturally Translations are drawn on a matching background so the screen reads like the original. Pinch to zoom, switch between original and translation, or share. ■ Every sentence, one tap away Tap a sentence to see the original and translation together and copy them, have it read aloud, add it to your glossary, or retranslate the screen with AI. ■ Read as a list For long screens, see every translation as a list, copy it all, or have it read aloud. ■ Glossary Add character names, station names, and other proper nouns, and they're always translated the same way. ■ On-device and free By default Mollu uses Apple's on-device translation. Once language packs are downloaded it works offline, and your screen never leaves your device. ■ When you want more natural translations (optional) Connect Claude, GPT, or Gemini with your own API key for context-aware translation. Mollu asks for your consent first and sends only the recognized text, never the image. ■ Private history History stays on your device and is excluded from iCloud backups. You can search it by sentence, it's deleted automatically after the period you choose (7 days by default), and you can lock it with Face ID. Languages: Korean, English, Japanese, Chinese (Simplified and Traditional), Spanish, French, German, Italian, Portuguese, Russian, Vietnamese, Thai, Indonesian, Arabic, Dutch, Hindi, Polish, Turkish, Ukrainian (Some language pairs require Apple translation language packs.)

Screenshots

Pupil.Size2 screens
Mollu4 screens

Verdict

The call

The clearest difference is update cadence: Mollu at daily against Pupil.Size's every 2 months. Pupil.Size's advantage is iOS requirement (11.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pupil.Size ships an update every 2 months, Mollu daily. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Pupil.Size versus Mollu: the parameters behind the verdict, then further details
ParameterPupil.SizeMollu
PriceFreeFree
Rating1.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better26.0
Further details — not scored
Size1 MB59 MB
Age rating4+4+
DeveloperSCALAR CORP.MINSIK KIM

In-app purchases

None

Pupil.Size

No in-app purchases

None

Mollu

No in-app purchases

Questions

Is Pupil.Size free?
Pupil.Size is free to download, with no in-app purchases.
Is Mollu free?
Mollu is free to download, with no in-app purchases.
Do Pupil.Size or Mollu have ads?
Neither Pupil.Size nor Mollu shows ads.
Which is updated more often, Pupil.Size or Mollu?
Pupil.Size ships an update every 2 months, and Mollu daily. Most recently, Pupil.Size was updated on November 2, 2026 and Mollu on November 6, 2026.

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