# Watts vs Sqft Calculator

The clearest difference is in-app purchases: Watts at none against Sqft Calculator's 1. Watts also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). Sqft Calculator's advantage is update cadence (every 9 days vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Sqft Calculator sells 1 one-off in-app purchase. Watts asks for nothing beyond the download.

Watts ships an update every 4 months, Sqft Calculator every 9 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Watts | Sqft Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/watts/id958596712/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Code Smart LLC](https://appshunter.io/developer/460440673) | [Jhomar Maravillas](https://appshunter.io/developer/6783703541) |

## What reviewers say

### Watts

[App page](https://appshunter.io/ios/app/watts/id958596712)

Calculate the cost of running electrical devices over time. This simple tool helps you understand your energy consumption expenses.

**Highlights:** Calculate device running costs, Easy to use interface, Track energy expenses over time, Simple utility tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Sqft Calculator

[App page](https://appshunter.io/ios/app/sqft-calculator/id6792438704)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Access | $2.99 | one-time |


## Frequently asked questions

### Is Watts free?

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

### Is Sqft Calculator free?

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

### Do Watts or Sqft Calculator have ads?

Neither Watts nor Sqft Calculator shows ads.

### Which is updated more often, Watts or Sqft Calculator?

Watts ships an update every 4 months, and Sqft Calculator every 9 days. Most recently, Watts was updated on October 18, 2026 and Sqft Calculator on October 25, 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.*