# Puff Count vs Invisible String

The clearest difference is review sentiment: Invisible String at 100% against Puff Count's 20%. Invisible String also leads on rating (5.0 vs 4.3) and ads (none vs shown). Puff Count's advantage is ratings volume (2.6K vs 2) and update cadence (weekly vs every 3 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Puff Count sells 14 in-app purchases, starting at $3.99 per month and Invisible String sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Invisible String holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Puff Count has 2.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 20% of Puff Count's written reviews are positive against 100% of Invisible String's.

Puff Count ships an update weekly, Invisible String every 3 weeks. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Puff Count | Invisible String |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (2.6K ratings)](https://appshunter.io/ios/app/puff-count-quit-vaping-now/id1488580640/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/invisible-string/id6757892661/reviews)** |
| Number of ratings | **2.6K** | 2 |
| Positive reviews | 20.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 70 MB | 13 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 12+ |
| Developer | [Rodger Studio (Apps)](https://appshunter.io/developer/1861800626) | [CatalystNeuro, LLC](https://appshunter.io/developer/1869483205) |

## What reviewers say

### Puff Count

[App page](https://appshunter.io/ios/app/puff-count-quit-vaping-now/id1488580640)

This app helps users reduce and quit vaping by tracking puff counts, nicotine levels, and progress over time. It offers features like custom quit plans, daily limits, and social support to guide users towards a healthier lifestyle.

**Highlights:** Track Puffs, Track Mg Levels, Visualize Quit Progress, Custom Quit Plan, Quit with Friends, Daily Limits, Goal Tracking

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puff Count Unlimited | $3.99 | per month |
| Puff Count Unlimited | $4.99 | per 7 days |
| Puff Count Unlimited 30% Off | $6.99 | per 7 days |
| Puff Count Unlimited | $7.99 | per 7 days |
| Puff Count Unlimited | $9.99 | per 7 days |
| Puff Count Unlimited | $9.99 | per 7 days |
| Puff Count Unlimited | $12.99 | per month |
| Puff Count Unlimited | $24.99 | per month |
| Puff Count Unlimited | $34.99 | per year |
| Puff Count Unlimited Annual | $39.99 | per year |
| Puff Count Unlimited | $49.99 | per year |
| Puff Count Unlimited Annual | $59.99 | per year |
| Puff Count Unlimited | $59.99 | per year |
| Puff Count Unlimited Annual | $89.99 | per year |

**What reviewers like**

- 👍 Helpful for tracking puffs and nicotine intake
- 🚀 Simple and easy to use
- 💡 Motivates users to quit or reduce vaping
- 🤝 Ability to compete with friends to reduce puffs

**What reviewers complain about**

- 💰 Subscription-based model, not free
- 🔒 Paywall restricts access to core features
- 🐛 Bugs and glitches, including puff count resets
- 🔍 Lack of customization options

**Reported bugs**

- Crashes when trying to access certain features
- Inconsistent puff count tracking
- Issues with subscription management and cancellation

**Requested features**

- Widget for quick puff tracking
- Ability to edit past puff entries
- Integration with wearable devices
- More advanced analytics and progress tracking


### Invisible String

[App page](https://appshunter.io/ios/app/invisible-string/id6757892661)

Explore the hidden connections in your relationship by comparing geotagged photos with your partner. Discover shared locations and times you were near each other before officially meeting. Uncover the unique story of how fate may have brought you together.

**Highlights:** Compare geotagged photos, Find 'near miss' locations, Discover shared past moments, See proximity details, View side-by-side photos, Privacy-focused local comparison

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Your Story | $2.99 | one-time |
| Expansion pack | $2.99 | one-time |


## Frequently asked questions

### Is Puff Count free?

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

### Is Invisible String free?

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

### Which has better reviews, Puff Count or Invisible String?

Invisible String is rated higher. Puff Count averages 4.3 out of 5 from 2.6K ratings, while Invisible String averages 5.0 from 2 ratings.

### Do Puff Count or Invisible String have ads?

Puff Count shows ads; Invisible String does not.

### Which is updated more often, Puff Count or Invisible String?

Puff Count ships an update weekly, and Invisible String every 3 weeks. Most recently, Puff Count was updated on October 17, 2026 and Invisible String on October 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.*