# Predy vs HabitBook

The clearest difference is ads: HabitBook at none against Predy's shown. On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. Predy sells 3 in-app purchases, starting at $4.39 per month and HabitBook sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Predy | HabitBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/predy-study-trackerpomodoro/id6749900495/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 339 MB | 35 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GO SHIMIZU](https://appshunter.io/developer/1767583096) | [REFBUCKS MEDIA LLP](https://appshunter.io/developer/1832906542) |

## What reviewers say

### Predy

[App page](https://appshunter.io/ios/app/predy-study-trackerpomodoro/id6749900495)

This app helps you overcome procrastination and build consistent work habits. It focuses on making starting easy, keeping motivation high, and visualizing your progress. Designed for those who struggle with task management, it turns effort into visible achievement.

**Highlights:** Project-based task management, Work tracking with timers and Pomodoro, StudyWithMe focus mode, AutoPilot for easy task initiation, Streak bonuses and productivity rankings, Progress analytics and prediction training, Goal estimation and feedback

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Predy Premium | $4.39 | per month |
| Predy Premium | $36.49 | per year |
| Predy | $53.99 | one-time |


### HabitBook

[App page](https://appshunter.io/ios/app/habitbook-habit-tracker/id6749925752)

This app helps you build lasting habits by combining tracking, mood monitoring, and journaling. Visualize your progress with heat maps, set flexible goals, and receive smart reminders. It offers offline functionality and a privacy-focused design.

**Highlights:** Comprehensive habit tracking, Beautiful visual progress charts, Advanced streak tracking, Home screen widgets, Integrated wellness features, Smart reminders, Phone step integration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HabitBook Pro - Monthly | $1.99 | per month |
| HabitBook Pro - Yearly | $11.99 | per year |
| HabitBook Pro - Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Predy free?

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

### Is HabitBook free?

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

### Do Predy or HabitBook have ads?

Predy shows ads; HabitBook does not.

### Which is updated more often, Predy or HabitBook?

Predy ships an update every 3 days, and HabitBook every 3 days. Most recently, Predy was updated on September 20, 2026 and HabitBook on June 1, 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.*