# TwoScales vs SunSpan

The clearest difference is in-app purchases: SunSpan at none against TwoScales's 1. SunSpan also leads on iOS requirement (16.0 vs 18.2). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. TwoScales sells 1 one-off in-app purchase. SunSpan asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for TwoScales against 5.0 for SunSpan. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TwoScales ships an update every 3 days, SunSpan every 2 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TwoScales | SunSpan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/twoscales/id6743337334/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sunspan/id6761731642/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 7 MB | 6 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cherry Pi Solutions LLC](https://appshunter.io/developer/1802116267) | [Mykhailo Chelnokov](https://appshunter.io/developer/1891136089) |

## What reviewers say

### TwoScales

[App page](https://appshunter.io/ios/app/twoscales/id6743337334)

This app offers a dual-scale weather board for tracking global cities and a fun, fast-paced game to test your forecasting skills. View conditions in Celsius or Fahrenheit, save favorites, and compete for high scores.

**Highlights:** Dual-scale temperature display (C/F), Global city weather tracking, Favorite location management, Live weather guessing game, Score and streak tracking, Light/Dark/System appearance modes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock More Cities | $1.99 | one-time |


### SunSpan

[App page](https://appshunter.io/ios/app/sunspan/id6761731642)

Visualize an entire year of daylight, sunrise, sunset, and twilight on a single, intuitive chart. Easily inspect daily solar times and phases by tapping or dragging across the visual representation. Offers detailed insights into seasonal changes and astronomical events.

**Highlights:** Full-year daylight chart, Eight-stop twilight gradient, Inspect daily solar times, DST transitions marked, Location picker via map/GPS, Automatic time zone resolution

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

**In-app purchases:** none


## Frequently asked questions

### Is TwoScales free?

TwoScales is free to download, with in-app purchases available.

### Is SunSpan free?

SunSpan is free to download, with no in-app purchases.

### Which has better reviews, TwoScales or SunSpan?

TwoScales and SunSpan are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do TwoScales or SunSpan have ads?

Neither TwoScales nor SunSpan shows ads.

### Which is updated more often, TwoScales or SunSpan?

TwoScales ships an update every 3 days, and SunSpan every 2 days. Most recently, TwoScales was updated on October 28, 2026 and SunSpan on October 24, 2026.

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