# Back in Time vs Proportia

The clearest difference is price: Proportia at $0.99 against Back in Time's $7.99. Proportia also leads on update cadence (daily vs every 7 months) and rating (5.0 vs 4.7). Back in Time's advantage is ratings volume (27 vs 5). On ads, in-app purchases and monetization model there is nothing between them.

Back in Time costs $7.99 and Proportia $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Proportia holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Back in Time has 27 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 84% of Back in Time's written reviews are positive against 100% of Proportia's.

Back in Time ships an update every 7 months, Proportia daily. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Back in Time | Proportia |
| --- | --- | --- |
| Price | $7.99 | **$0.99** |
| Rating | [4.7 (27 ratings)](https://appshunter.io/ios/app/back-in-time/id450345693/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/proportia/id6744179896/reviews)** |
| Number of ratings | **27** | 5 |
| Positive reviews | 83.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Paid | Paid |
| Size | 836 MB | 23 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Landka](https://appshunter.io/developer/450345696) | [Cognichine](https://appshunter.io/developer/1806408356) |

## What reviewers say

### Back in Time

[App page](https://appshunter.io/ios/app/back-in-time/id450345693)

Explore the history of the Universe, Earth, Life, and Civilization through an immersive, interactive journey. This app uses custom animations, timelines, and interesting facts to bring historical events to life. It's designed to help users understand the connections between events and see the bigger picture.

**Highlights:** Interactive timeline of events, Custom animations and videos, Over 350 remarkable images, Little-known interesting facts, Offline access, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Proportia

[App page](https://appshunter.io/ios/app/proportia/id6744179896)

This app transforms numerical data into clear, proportional visual representations like circles, rectangles, or bars. It simplifies understanding ratios, comparing values, and building numeracy skills for students, educators, and professionals.

**Highlights:** Dynamic shape visualization (circles, bars, rectangles), Proportional resizing based on values, Interactive value entry with calculator, Customizable shape colors and settings, Real-time visual feedback, Clean, dark theme design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back in Time free?

Back in Time costs $7.99, with no in-app purchases.

### Is Proportia free?

Proportia costs $0.99, with no in-app purchases.

### Which has better reviews, Back in Time or Proportia?

Proportia is rated higher. Back in Time averages 4.7 out of 5 from 27 ratings, while Proportia averages 5.0 from 5 ratings.

### Do Back in Time or Proportia have ads?

Neither Back in Time nor Proportia shows ads.

### Which is updated more often, Back in Time or Proportia?

Back in Time ships an update every 7 months, and Proportia daily. Most recently, Back in Time was updated on October 24, 2026 and Proportia 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.*