# MoleculeSketch iP vs TeacherTool 7 Flex

The clearest difference is price: MoleculeSketch iP at Free against TeacherTool 7 Flex's $5.99. MoleculeSketch iP also leads on review sentiment (50% vs 8%). TeacherTool 7 Flex's advantage is update cadence (fortnightly vs every 2 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

MoleculeSketch iP is free to download; TeacherTool 7 Flex costs $5.99 up front. MoleculeSketch iP sells 1 one-off in-app purchase and TeacherTool 7 Flex sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

MoleculeSketch iP ships an update every 2 months, TeacherTool 7 Flex fortnightly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | MoleculeSketch iP | TeacherTool 7 Flex |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **50.0% of reviews** | 8.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 61 MB | 65 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Dolder](https://appshunter.io/developer/942173209) | [Udo Hilwerling](https://appshunter.io/developer/305195007) |

## What reviewers say

### MoleculeSketch iP

[App page](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737)

Create and edit chemical formulas and reactions with an intuitive drawing interface. This app allows for precise placement of atoms and bonds, with advanced features for displaying hydrogen atoms, electron pairs, and reaction arrows. Unlock the full potential with an in-app purchase for advanced functionalities.

**Highlights:** Add atoms and bonds with position locking, Choose different bond types, Show missing hydrogen atoms, Add reaction arrows and text fields, Calculate average mass and formula, Import from mol/sdf files, Use gestures for zooming and rotation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $1.99 | one-time |


### TeacherTool 7 Flex

[App page](https://appshunter.io/ios/app/teachertool-7-flex/id1638672996)

Configure your grading and student tracking tool with flexible modules. Manage courses, students, and grades with professional features. Enhance functionality with optional purchases for attendance, timetables, and more.

**Highlights:** Create unlimited courses and manage students, Professional grading features, Track student educational performance, Optional modules for advanced features, Supports various grading systems

**Features:** Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Networking | $1.99 | one-time |
| Checklists | $2.99 | one-time |
| Register | $2.99 | one-time |
| Export | $2.99 | one-time |
| Printing | $2.99 | one-time |
| Timetable | $3.99 | one-time |
| Absence management | $3.99 | one-time |
| Seating plan | $3.99 | one-time |
| Types of grades for exams | $3.99 | one-time |


## Frequently asked questions

### Is MoleculeSketch iP free?

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

### Is TeacherTool 7 Flex free?

TeacherTool 7 Flex costs $5.99, and also offers in-app purchases.

### Do MoleculeSketch iP or TeacherTool 7 Flex have ads?

Neither MoleculeSketch iP nor TeacherTool 7 Flex shows ads.

### Which is updated more often, MoleculeSketch iP or TeacherTool 7 Flex?

MoleculeSketch iP ships an update every 2 months, and TeacherTool 7 Flex fortnightly. Most recently, MoleculeSketch iP was updated on November 6, 2026 and TeacherTool 7 Flex on November 7, 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.*