# Interpupillary Distance Meter vs Sci

The clearest difference is review sentiment: Sci at 100% against Interpupillary Distance Meter's 50%. Sci also leads on rating (5.0 vs 4.6). Interpupillary Distance Meter's advantage is ratings volume (512 vs 3) and update cadence (every 6 weeks vs every 6 months). On ads, in-app purchases and device support there is nothing between them.

Interpupillary Distance Meter costs $0.99 and Sci $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sci holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Interpupillary Distance Meter has 512 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Interpupillary Distance Meter's written reviews are positive against 100% of Sci's.

Interpupillary Distance Meter ships an update every 6 weeks, Sci every 6 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Interpupillary Distance Meter | Sci |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | [4.6 (512 ratings)](https://appshunter.io/ios/app/interpupillary-distance-meter/id1481753106/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sci-fi-calculator-widget/id6470088682/reviews)** |
| Number of ratings | **512** | 3 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 8 MB | 21 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Ubicolor Ltd](https://appshunter.io/developer/828691698) | [NSTE, LLC](https://appshunter.io/developer/1671708345) |

## What reviewers say

### Interpupillary Distance Meter

[App page](https://appshunter.io/ios/app/interpupillary-distance-meter/id1481753106)

Quickly measure your inter pupillary distance using your iPhone or iPad. Achieve highly accurate results to 0.1mm for both near and far pupil distances. The app features large text for readability and supports dark mode.

**Highlights:** Accurate IPD measurement to 0.1mm, Near and far pupil distance, Glasses-free measurement for accuracy, Large, readable text, Dark mode support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Accurate measurements for some users
- 💡 Pure IPD measurement
- 👍 Works quickly
- 👍 Remarkable use of iPhone tech

**What reviewers complain about**

- 🐛 Inaccurate measurements reported
- 🐛 Compatibility issues with iPads
- 🐛 Does not work on older iPhones
- 🐛 Inability to read results without glasses
- 🐛 App crashes or fails to recognize eyes

**Reported bugs**

- Inaccurate IPD readings (up to 10% off)
- Does not work on iPad
- Incompatible with devices without true depth camera
- Cannot read results with glasses off
- App fails to recognize eyes

**Requested features**

- Allow measurement of near PD
- Improve compatibility information on App Store
- Fix compatibility for iPads and older iPhones
- Allow reading results with glasses on


### Sci

[App page](https://appshunter.io/ios/app/sci-fi-calculator-widget/id6470088682)

Customize your home screen with a calculator widget featuring 16 unique sci-fi themes. Enjoy futuristic aesthetics and sounds, transforming your device into a futuristic interface with a simple tap.

**Highlights:** 16 sci-fi themes, Home screen widget, Tap to switch themes, Futuristic sounds, iPhone and iPad support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interpupillary Distance Meter free?

Interpupillary Distance Meter costs $0.99, with no in-app purchases.

### Is Sci free?

Sci costs $3.99, with no in-app purchases.

### Which has better reviews, Interpupillary Distance Meter or Sci?

Sci is rated higher. Interpupillary Distance Meter averages 4.6 out of 5 from 512 ratings, while Sci averages 5.0 from 3 ratings.

### Do Interpupillary Distance Meter or Sci have ads?

Neither Interpupillary Distance Meter nor Sci shows ads.

### Which is updated more often, Interpupillary Distance Meter or Sci?

Interpupillary Distance Meter ships an update every 6 weeks, and Sci every 6 months. Most recently, Interpupillary Distance Meter was updated on October 15, 2026 and Sci on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*