# ChallengeUp vs Iceberg SOS

The clearest difference is review sentiment: ChallengeUp at 89% against Iceberg SOS's 0%. ChallengeUp also leads on rating (5.0 vs 3.5) and monetization model (free vs freemium). Iceberg SOS's advantage is update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases 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 and Iceberg SOS sells 3 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ChallengeUp holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: ChallengeUp has 42 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 89% of ChallengeUp's written reviews are positive against 0% of Iceberg SOS's.

ChallengeUp ships an update every 2 months, Iceberg SOS fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ChallengeUp | Iceberg SOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (42 ratings)](https://appshunter.io/ios/app/challengeup-habit-tracker/id1556682948/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/iceberg-sos/id6760125666/reviews) |
| Number of ratings | **42** | 2 |
| Positive reviews | **89.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 85 MB | 21 MB |
| Requires iOS | **16.0** | 18 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [LIKE WRONG LLP](https://appshunter.io/developer/1556682950) | [Ilya Kiselev](https://appshunter.io/developer/1882765299) |

## 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 |


### Iceberg SOS

[App page](https://appshunter.io/ios/app/iceberg-sos/id6760125666)

Instantly send emergency alerts with your current location to chosen contacts and legal professionals with a single tap. Some advanced features are unlocked with a paid subscription.

**Highlights:** One-tap emergency notifications, Up-to-date location sharing, Selectable contacts and lawyers, Paid subscription for advanced features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $19.99 | per month |
| 3 Months | $49.99 | per 3 months |
| Yearly | $149.99 | per year |


## Frequently asked questions

### Is ChallengeUp free?

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

### Is Iceberg SOS free?

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

### Which has better reviews, ChallengeUp or Iceberg SOS?

ChallengeUp is rated higher. ChallengeUp averages 5.0 out of 5 from 42 ratings, while Iceberg SOS averages 3.5 from 2 ratings.

### Do ChallengeUp or Iceberg SOS have ads?

Neither ChallengeUp nor Iceberg SOS shows ads.

### Which is updated more often, ChallengeUp or Iceberg SOS?

ChallengeUp ships an update every 2 months, and Iceberg SOS fortnightly. Most recently, ChallengeUp was updated on November 3, 2026 and Iceberg SOS on October 31, 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.*