# Circuitry vs EcObjective

The clearest difference is review sentiment: Circuitry at 96% against EcObjective's 0%. Circuitry also leads on rating (4.8 vs 3.0) and in-app purchases (none vs 2). EcObjective's advantage is update cadence (every 3 weeks vs every 46 months). On price, ads and device support there is nothing between them.

Both are free to download. EcObjective sells 2 in-app purchases, starting at $3.99 per month. Circuitry asks for nothing beyond the download.

Circuitry holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Circuitry has 291 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 96% of Circuitry's written reviews are positive against 0% of EcObjective's.

Circuitry ships an update every 46 months, EcObjective every 3 weeks. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Circuitry | EcObjective |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (291 ratings)](https://appshunter.io/ios/app/circuitry/id959536839/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/ecobjective-co2-tracker/id1242129400/reviews) |
| Number of ratings | **291** | 1 |
| Positive reviews | **95.6% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 12 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Foster](https://appshunter.io/developer/959536838) | [Calogero Cascio](https://appshunter.io/developer/1242129399) |

## What reviewers say

### Circuitry

[App page](https://appshunter.io/ios/app/circuitry/id959536839)

Explore boolean algebra and digital circuits through interactive logic gate puzzles. Build and experiment with complex circuit designs in a sandbox environment. Progress through levels to unlock new components and challenges.

**Highlights:** Interactive logic circuit diagrams, Boolean algebra learning, Logic gate puzzles, Sandbox circuit building, Unlockable circuit components, 21 logic problems

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning logic gates
- 💰 Free to use
- 🎮 Fun and engaging levels
- 💡 Playground mode for tinkering
- 📱 Good iPad simulator

**What reviewers complain about**

- 🐛 Clunky controls for moving/connecting
- 🐛 Wires can be difficult to detach
- 🐛 Inconsistent connection handling
- 🐛 Touch hitboxes are flaky
- 🐛 Drag-and-drop recognition issues

**Reported bugs**

- Problem #7 has no solution
- Wires get stuck/difficult to detach
- Clunky drag-and-drop for moving components and connecting wires
- 4-bit register has incorrect visual
- Problem #5 has a potential mistake in logic

**Requested features**

- More levels
- Explain more/help when stuck
- Ability to put text on buttons/LEDs
- More complex components (multiplexer, demultiplexer, ALU, shift register, decoders, etc.)
- Ability to adjust clock speed


### EcObjective

[App page](https://appshunter.io/ios/app/ecobjective-co2-tracker/id1242129400)

Calculate your carbon footprint quickly and receive personalized, science-backed actions to reduce it. This privacy-focused app tracks your environmental impact without requiring an account or selling your data. Get actionable steps and AI coaching to build sustainable habits.

**Highlights:** Carbon footprint calculation, Personalized reduction plans, AI coaching for motivation, Progress tracking, Privacy-focused design, Science-based data

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Circuitry free?

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

### Is EcObjective free?

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

### Which has better reviews, Circuitry or EcObjective?

Circuitry is rated higher. Circuitry averages 4.8 out of 5 from 291 ratings, while EcObjective averages 3.0 from 1 ratings.

### Do Circuitry or EcObjective have ads?

Neither Circuitry nor EcObjective shows ads.

### Which is updated more often, Circuitry or EcObjective?

Circuitry ships an update every 46 months, and EcObjective every 3 weeks. Most recently, Circuitry was updated on October 6, 2026 and EcObjective 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.*