# Inflation Calculator vs Watch Spring

The clearest difference is price: Inflation Calculator at Free against Watch Spring's $3.99. Inflation Calculator also leads on ratings volume (3.6K vs 3) and iOS requirement (16.0 vs 26.0). Watch Spring's advantage is in-app purchases (none vs 4) and update cadence (every 3 weeks vs every 3 months). On rating, ads and device support there is nothing between them.

Inflation Calculator is free to download; Watch Spring costs $3.99 up front. Inflation Calculator sells 4 in-app purchases, starting at $7.49 per year. Watch Spring asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Inflation Calculator against 5.0 for Watch Spring. That said, the two scores are not equally well evidenced: Inflation Calculator has 3.6K ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 85% of Inflation Calculator's written reviews are positive against 100% of Watch Spring's.

Inflation Calculator ships an update every 3 months, Watch Spring every 3 weeks. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Inflation Calculator | Watch Spring |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.9 (3.6K ratings)](https://appshunter.io/ios/app/inflation-calculator/id926713392/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/watch-spring/id1617113233/reviews)** |
| Number of ratings | **3.6K** | 3 |
| Positive reviews | 85.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 4 MB | 12 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dylan Burton](https://appshunter.io/developer/1668483591) | [Simon Greig](https://appshunter.io/developer/562988756) |

## What reviewers say

### Inflation Calculator

[App page](https://appshunter.io/ios/app/inflation-calculator/id926713392)

Easily determine the present-day value of past prices using up-to-date inflation data. This tool supports 22 international currencies and provides yearly updates, making it simple to understand historical cost comparisons.

**Highlights:** Calculate dollar value from 1800-2025, Supports 22 international currencies, Yearly inflation data updates, Apple Watch companion app, Simple and intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (yearly) | $7.49 | per year |
| Premium (yearly) | $14.99 | per year |
| Premium (lifetime) | $14.99 | one-time |
| Premium (lifetime) | $29.99 | one-time |

**What reviewers like**

- 👍 Comprehensive and useful
- 👍 Easy to use
- 👍 Excellent value
- 👍 Provides helpful perspective
- 👍 Intuitive and straightforward

**What reviewers complain about**

- 🐛 Not updated for current year
- 🐛 Lacks updates for some currencies
- 🐛 Design could be improved
- 🐛 Lacks ability to directly input data

**Reported bugs**

- Not updated beyond 2024
- Caps out at 2020 for some countries

**Requested features**

- Update to 2025
- Add support for more currencies
- Improve design and usability
- Allow direct data input


### Watch Spring

[App page](https://appshunter.io/ios/app/watch-spring/id1617113233)

Track the accuracy and wear of your mechanical watches. Analyze trends with charts, log service history, and keep notes on watch details. See how your collection performs over time and manage your ownership history.

**Highlights:** Accuracy tracking and trend charts, Wear calendar and statistics, Watch collection summary cards, Service and repair logging, Ownership history timeline, Time-setting clock, CSV import/export

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

**In-app purchases:** none


## Frequently asked questions

### Is Inflation Calculator free?

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

### Is Watch Spring free?

Watch Spring costs $3.99, with no in-app purchases.

### Which has better reviews, Inflation Calculator or Watch Spring?

Watch Spring is rated higher. Inflation Calculator averages 4.9 out of 5 from 3.6K ratings, while Watch Spring averages 5.0 from 3 ratings.

### Do Inflation Calculator or Watch Spring have ads?

Neither Inflation Calculator nor Watch Spring shows ads.

### Which is updated more often, Inflation Calculator or Watch Spring?

Inflation Calculator ships an update every 3 months, and Watch Spring every 3 weeks. Most recently, Inflation Calculator was updated on November 1, 2026 and Watch Spring on October 27, 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.*