# Tenio vs ChemBench

The clearest difference is in-app purchases: Tenio at none against ChemBench's 4. ChemBench's advantage is update cadence (every 6 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChemBench sells 4 one-off in-app purchases. Tenio asks for nothing beyond the download.

Tenio ships an update every 4 months, ChemBench every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Tenio | ChemBench |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tenio-electronics-toolkit-lab/id6757969551/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 7 MB | 8 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Samuel Rodas Aroche](https://appshunter.io/developer/1706040833) | [献慧 陈](https://appshunter.io/developer/1896370005) |

## What reviewers say

### Tenio

[App page](https://appshunter.io/ios/app/tenio-electronics-toolkit-lab/id6757969551)

This app provides a suite of calculators and converters for electronics enthusiasts, students, and makers. It helps users quickly solve circuit tasks, decode component markings, and calculate values for resistors and capacitors, speeding up project development.

**Highlights:** Resistor color code calculator, SMD resistor code converter, LED resistor calculator, Series & parallel resistor calculator, SMD capacitor code calculator, Series & parallel capacitor calculator

**Features:** macOS Compatibility

**In-app purchases:** none


### ChemBench

[App page](https://appshunter.io/ios/app/chembench-equation-balancer/id6813808389)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intro Answers | $0.99 | one-time |
| Core Answers | $1.99 | one-time |
| Brainer Answers | $2.99 | one-time |
| Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Tenio free?

Tenio is free to download, with no in-app purchases.

### Is ChemBench free?

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

### Do Tenio or ChemBench have ads?

Neither Tenio nor ChemBench shows ads.

### Which is updated more often, Tenio or ChemBench?

Tenio ships an update every 4 months, and ChemBench every 6 days. Most recently, Tenio was updated on October 24, 2026 and ChemBench on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*