# PlanetSustain vs IES60

The clearest difference is update cadence: PlanetSustain at fortnightly against IES60's every 5 weeks. IES60's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.1). On price, ads and in-app purchases there is nothing between them.

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

PlanetSustain ships an update fortnightly, IES60 every 5 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | PlanetSustain | IES60 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 177 MB | 36 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Event App](https://appshunter.io/developer/1556010049) | [Institution of Engineers, Singapore](https://appshunter.io/developer/1820745346) |

## What reviewers say

### PlanetSustain

[App page](https://appshunter.io/ios/app/planetsustain/id1672527905)

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

**In-app purchases:** none


### IES60

[App page](https://appshunter.io/ios/app/ies60/id6747309956)

**In-app purchases:** none


## Frequently asked questions

### Is PlanetSustain free?

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

### Is IES60 free?

IES60 is free to download, with no in-app purchases.

### Do PlanetSustain or IES60 have ads?

Neither PlanetSustain nor IES60 shows ads.

### Which is updated more often, PlanetSustain or IES60?

PlanetSustain ships an update fortnightly, and IES60 every 5 weeks. Most recently, PlanetSustain was updated on November 7, 2026 and IES60 on November 8, 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.*