# CONVERT UNITS vs Plumly

The clearest difference is in-app purchases: Plumly at none against CONVERT UNITS's 2. Plumly also leads on ads (none vs shown) and review sentiment (100% vs 76%). CONVERT UNITS's advantage is ratings volume (1.4K vs 4) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. CONVERT UNITS sells 2 in-app purchases, starting at $0.99 per month. Plumly asks for nothing beyond the download.

Plumly holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CONVERT UNITS has 1.4K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 76% of CONVERT UNITS's written reviews are positive against 100% of Plumly's.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CONVERT UNITS | Plumly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.4K ratings)](https://appshunter.io/ios/app/convert-units/id1114969241/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/plumly/id6775609187/reviews)** |
| Number of ratings | **1.4K** | 4 |
| Positive reviews | 75.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | Ad-supported | **Free** |
| Size | 22 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Adysseus](https://appshunter.io/developer/447444997) | [Cedarline Technologies LLC](https://appshunter.io/developer/6775609189) |

## What reviewers say

### CONVERT UNITS

[App page](https://appshunter.io/ios/app/convert-units/id1114969241)

Easily convert between various units of measurement including length, weight, temperature, and currency. Features automatic currency updates, a vast selection of currencies, and customizable display options for accuracy and rounding. Optimized for multitasking on iPad and offers a beautiful dark design.

**Highlights:** Converts length, weight, speed, area, time, pressure, volume, power, fuel, temperature, data, and currency, Automatic currency updates, 160 currencies available, Multitasking enabled for iPad, Alphabetical quick links for units, Customizable startup categories, Adjustable accuracy and rounding

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | per month |
| Remove ads | $19.99 | one-time |

**What reviewers like**

- 👍 Quick & easy to use
- 👍 Ease of use
- 👍 Simple and easy to use
- 👍 Well thought out and easy to use
- 👍 Excellent and very reliable

**What reviewers complain about**

- 🐛 Ads obstruct use
- 🐛 Subscription required to remove ads
- 🐛 Currency conversion not working

**Reported bugs**

- App got stuck, required uninstall/reinstall to fix
- Navigation issues, unable to get back to home page

**Requested features**

- Option to convert between functions (length to volume)
- Remember last conversion settings for each category


### Plumly

[App page](https://appshunter.io/ios/app/plumly/id6775609187)

Effortlessly capture and organize events, places, and ideas from photos, voice, or pasted links. This app intelligently parses information and resurfaces saved items when relevant, acting as a personal memory assistant.

**Highlights:** Capture flyers with camera, Voice-to-event creation, Parse links from social media and maps, Intelligent resurfacing of saved items, Music-based event recommendations, Calendar integration

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

**In-app purchases:** none


## Frequently asked questions

### Is CONVERT UNITS free?

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

### Is Plumly free?

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

### Which has better reviews, CONVERT UNITS or Plumly?

Plumly is rated higher. CONVERT UNITS averages 4.7 out of 5 from 1.4K ratings, while Plumly averages 5.0 from 4 ratings.

### Do CONVERT UNITS or Plumly have ads?

CONVERT UNITS shows ads; Plumly does not.

### Which is updated more often, CONVERT UNITS or Plumly?

CONVERT UNITS ships an update weekly, and Plumly weekly. Most recently, CONVERT UNITS was updated on October 16, 2026 and Plumly on October 13, 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.*