# ChallengeUp vs VoltUnis

The clearest difference is in-app purchases: VoltUnis at none against ChallengeUp's 2. VoltUnis also leads on iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. ChallengeUp sells 2 in-app purchases, starting at $14.99 per year. VoltUnis asks for nothing beyond the download.

## The numbers

| Metric | ChallengeUp | VoltUnis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (42 ratings)](https://appshunter.io/ios/app/challengeup-habit-tracker/id1556682948/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 89.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 85 MB | 81 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [LIKE WRONG LLP](https://appshunter.io/developer/1556682950) | [VoltUnis](https://appshunter.io/developer/1789066061) |

## What reviewers say

### ChallengeUp

[App page](https://appshunter.io/ios/app/challengeup-habit-tracker/id1556682948)

This app helps you build new habits, improve self-care, or break bad ones with a structured, short-term challenge system. Focus on achieving goals within 7 to 60 days to experience lasting change without the pressure of lifelong commitment.

**Highlights:** Short challenge system (7-60 days), Create custom challenges, Track progress visually, Receive goal reminders, Share progress on social media, Access useful challenge tips

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus (Annual) | $14.99 | per year |
| Plus Lifetime | $39.99 | one-time |


### VoltUnis

[App page](https://appshunter.io/ios/app/voltunis/id6740252913)

**In-app purchases:** none


## Frequently asked questions

### Is ChallengeUp free?

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

### Is VoltUnis free?

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

### Do ChallengeUp or VoltUnis have ads?

Neither ChallengeUp nor VoltUnis shows ads.

---

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