# Puff Log vs NightCurve

The clearest difference is update cadence: Puff Log at every 2 weeks against NightCurve's monthly. Puff Log also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Puff Log sells 5 in-app purchases, starting at $5.99 per 7 days and NightCurve sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Puff Log ships an update every 2 weeks, NightCurve monthly. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Puff Log | NightCurve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/puff-log/id6723900229/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 22 MB | 10 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | +17 | 17+ |
| Developer | [Tech Arm Softwares](https://appshunter.io/developer/1756634584) | [Marcin Kwasniewski](https://appshunter.io/developer/1891152751) |

## What reviewers say

### Puff Log

[App page](https://appshunter.io/ios/app/puff-log/id6723900229)

This app helps users track their vaping habits, reduce nicotine intake, and work towards quitting. It offers features like puff logging, trend analysis, and customizable quit plans, all designed for iOS users.

**Highlights:** Seamless puff tracking, Insightful trend analysis, Customizable quit plan, Personal vaping journal, Timely notifications, Data security and privacy

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puff Log weekly Save | $5.99 | per 7 days |
| Puff Log Pro | $5.99 | per month |
| puff log Pro Quarterly | $24.99 | per 3 months |
| Puff Log saver | $29.99 | per year |
| puff log pro yearly | $59.99 | per year |


### NightCurve

[App page](https://appshunter.io/ios/app/nightcurve-drink-tracker/id6761733094)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $29.99 | per year |
| Premium Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Puff Log free?

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

### Is NightCurve free?

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

### Do Puff Log or NightCurve have ads?

Neither Puff Log nor NightCurve shows ads.

### Which is updated more often, Puff Log or NightCurve?

Puff Log ships an update every 2 weeks, and NightCurve monthly. Most recently, Puff Log was updated on October 8, 2026 and NightCurve on October 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.*