# 75 Days Challenge vs Droplet

The clearest difference is ads: Droplet at none against 75 Days Challenge's shown. Droplet also leads on update cadence (every 2 days vs every 2 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. 75 Days Challenge sells 18 in-app purchases, starting at $1.99 per 7 days and Droplet sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

75 Days Challenge ships an update every 2 weeks, Droplet every 2 days. The most recent releases landed on October 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 75 Days Challenge | Droplet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (691 ratings)](https://appshunter.io/ios/app/75-days-challenge-better/id6667095733/reviews)** | — |
| Number of ratings | **691** | — |
| Positive reviews | 57.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 10 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Parnev](https://appshunter.io/developer/1645934480) | [Olga Marynovych](https://appshunter.io/developer/6785192191) |

## What reviewers say

### 75 Days Challenge

[App page](https://appshunter.io/ios/app/75-days-challenge-better/id6667095733)

This app helps you build lasting habits by tracking your progress on custom challenges. Set flexible durations, log daily progress with photos and notes, and monitor weight trends. Stay motivated with home screen widgets to maintain your streaks.

**Highlights:** Custom challenges, Flexible durations, Home Screen widgets, Photo progress & compare, Notes on every entry, Weight tracking & summaries

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access (Weekly) | $1.99 | per 7 days |
| Full Access | $2.99 | per month |
| Full Access (Monthly) | $3.99 | per month |
| Pro | $5.99 | per 7 days |
| Full Access (Weekly) | $5.99 | per 7 days |
| Full Access | $5.99 | per month |
| Full Access (Monthly) | $9.99 | per month |
| Full Access (Annual) | $19.99 | per year |
| Full Access (Annual) | $29.99 | per year |
| Full access | $39.99 | per year |
| Full Access (Annual) | $49.99 | per year |
| Pro | $59.99 | per year |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Lifetime Premium | $5.99 | one-time |
| Lifetime Pro | $9.99 | one-time |
| Lifetime Premium | $19.99 | one-time |
| Lifetime Pro | $59.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 💡 Customizable challenges
- 🚀 Straightforward layout
- 🔒 Lifetime premium access

**What reviewers complain about**

- 🐛 Glitchy and buggy
- 🚫 Limited features for paid version
- 💰 Not truly free, requires payment
- 🤔 Lack of advanced tracking features

**Reported bugs**

- Settings page freezes app
- Checklist widget doesn't update automatically
- App gets stuck on day 6 and won't unlock
- Camera function is unreliable

**Requested features**

- Add ability to start over at day 1 instead of resetting whole challenge
- Integrate with friends/social features
- Expand tracking capabilities beyond just weight and photos
- Add more customization options


### Droplet

[App page](https://appshunter.io/ios/app/droplet-hydration-tracker/id6785192189)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Droplet Pro | $4.99 | per month |


## Frequently asked questions

### Is 75 Days Challenge free?

75 Days Challenge is free to download, with in-app purchases available.

### Is Droplet free?

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

### Do 75 Days Challenge or Droplet have ads?

75 Days Challenge shows ads; Droplet does not.

### Which is updated more often, 75 Days Challenge or Droplet?

75 Days Challenge ships an update every 2 weeks, and Droplet every 2 days. Most recently, 75 Days Challenge was updated on October 27, 2026 and Droplet on September 28, 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.*