# Formulair vs Skilltree

The clearest difference is update cadence: Skilltree at weekly against Formulair's every 3 weeks. Formulair's advantage is device support (4 vs 1). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Formulair sells 1 one-off in-app purchase and Skilltree sells 8 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Formulair against 4.7 for Skilltree. Both are backed by a comparable volume of ratings — 190 and 286 respectively. Written reviews are what separate them: 87% of Formulair's written reviews are positive against 93% of Skilltree's.

Formulair ships an update every 3 weeks, Skilltree weekly. Both last shipped on October 17, 2026.

## The numbers

| Metric | Formulair | Skilltree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (190 ratings)](https://appshunter.io/ios/app/formulair/id1577823674/reviews)** | [4.7 (286 ratings)](https://appshunter.io/ios/app/skilltree-self-improvement/id6459107901/reviews) |
| Number of ratings | 190 | **286** |
| Positive reviews | 86.8% of reviews | **93.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 67 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Lux & Terra Ltd.](https://appshunter.io/developer/1576313291) | [Project Skill Tree](https://appshunter.io/developer/1701643282) |

## What reviewers say

### Formulair

[App page](https://appshunter.io/ios/app/formulair/id1577823674)

This app helps perfumers organize raw materials and create fragrance formulas. It allows detailed tracking of ingredients, dilutions, and costs, with tools for scaling and visualizing scent profiles. Export your creations in various formats for sharing or further analysis.

**Highlights:** Raw material organization with detailed cards, Formula creation and management, Customizable scaling engine, Fragrance pyramid and category visualization, Dilution tracking and management, Formula export to PDF, Markdown, TSV, Color-coding for raw materials

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 💡 Powerful formula calculation
- 🚀 Efficient organization of materials
- 💰 Good value for money
- ✨ Intuitive design

**What reviewers complain about**

- 💸 Expensive for some users
- 🐛 Crashing when deleting categories/materials
- 🤔 Lacks advanced features for some workflows
- 🔄 No batch editing of items
- 📂 Basic material import

**Reported bugs**

- App does not open
- Forgets license after purchase
- Crashing when deleting material categories or materials
- Syncing issues between laptop and iPad
- Cannot remove imported materials all at once

**Requested features**

- Group formula raw materials by Top, Core, Base
- Group product printing by Top, Core, Base
- Allow sub-categories for formula grouping
- Formula batch log for tracking batches and inventory
- Copy images into notes fields


### Skilltree

[App page](https://appshunter.io/ios/app/skilltree-self-improvement/id6459107901)

Transform your life into a game with a unique skill tree system. Build positive habits, boost confidence, improve focus, and achieve your goals with gamified progress tracking, rewards, and social competition.

**Highlights:** Real-life skill tree for self-development, Gamified or minimalist design modes, Effortless habit tracker with clear goals, Routines for habit building, Social features and leaderboards, Advanced analytics for engagement, Community support

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skilltree Premium | $5.99 | per month |
| Skilltree Premium | $24.99 | per 6 months |
| Skilltree Premium | $49.99 | per year |
| 50 Tokens | $0.99 | one-time |
| 150 Tokens | $1.99 | one-time |
| 500 Tokens | $4.99 | one-time |
| 2000 Tokens | $14.99 | one-time |
| 5000 Tokens | $69.99 | one-time |

**What reviewers like**

- 👍 Helps build consistent habits
- 🚀 Gamifies self-improvement
- 💡 Innovative approach to tracking progress
- 🎨 Clean and appealing design
- 🤝 Motivating for community/friends

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔒 Issues with login and progress tracking
- 🔒 Concerns about losing progress
- 🔒 Monetization limits free features

**Reported bugs**

- Randomly logged out of the app
- Greyed out habits/tasks not functioning
- Paid features still locked after purchase

**Requested features**

- Ability to customize skill tree
- More flexibility in task/habit management
- Integrations with other productivity apps
- Leaderboards and social features


## Frequently asked questions

### Is Formulair free?

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

### Is Skilltree free?

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

### Which has better reviews, Formulair or Skilltree?

Formulair is rated higher. Formulair averages 4.8 out of 5 from 190 ratings, while Skilltree averages 4.7 from 286 ratings.

### Do Formulair or Skilltree have ads?

Neither Formulair nor Skilltree shows ads.

### Which is updated more often, Formulair or Skilltree?

Formulair ships an update every 3 weeks, and Skilltree weekly. Most recently, Formulair was updated on October 17, 2026 and Skilltree on October 17, 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.*