Unit Converter - Convert all subscription: cost, reviews, how to cancel

• App Store rating4.6★ from 13,674 ratings
• Cheapest subscription$2.49 per month
• Reviews mentioning billing, last 12 months12 of 265 reviews

On this page: what it costs, how to cancel, what reviewers say.

What the data says

• Free trial converts to a paid plan7 days free trial, then $14.99 per year

What Unit Converter - Convert all costs

Download: Free. Subscriptions start at $2.49 per month.

• Premium 1 monthRenews every month, no trial$2.49
• Unit Converter Premium - 1yRenews every year, no trial$8.99
• Get premium7 days free trial, then renews every year$14.99
• Premium 1 year7 days free trial, then renews every year$14.99
• Conversion Calculator Pro - 1y7 days free trial, then renews every year$19.99

Price changes

• Jun 26, 2026: Get premium went from $9.99 to $5.99 per year
• Jan 29, 2025: Premium 1 year went from $12.99 to $14.99 per year
• Feb 24, 2025: Premium 1 year went from $14.99 to $12.99 per year

How to cancel Unit Converter - Convert all

1. Open Settings on your iPhone and tap your name at the top.
2. Tap Subscriptions.
3. Select Unit Converter - Convert all (listed under a plan name such as Premium 1 month).
4. Tap Cancel Subscription and confirm. You keep access until the end of the paid period.

If the app is not in that list, it was not billed through Apple. Cancel it with the developer instead: support page.

Charged after cancelling or during a trial? Request a refund at reportaproblem.apple.com within 90 days.

What reviewers say

Reported bugs

Conversion calculations are sometimes inaccurate; Inability to enter decimal values in some conversions; Compatibility issues with newer devices.

Recent one-star reviews

Terriblechrome ad at the beginning is annoying. Also does allow you to pick what units to convert to. Just bombards you with every unit. Irritating and I deleted it.

Fonctionne bienTrop d’annonce

AnnoyingEvery time you open the app, before you can even use it it asks you to rate the app. Then it gives you an un-skippable long ad. Maybe let me use the app before interrupting multiple times and asking for a review. If there were no pop ups I’d give 5 stars. But it’s unusable so I give 1 star.

Recent five-star reviews

Easy to NavigateVery user friendly app

Conversion needed every day.Not know is like taking away the answer to the question and then asking to demonstrate that answer

Very niceHas everything The shoes converter is best

About the developer

oWorld Software has published on the App Store since Jan 2, 2009: 19 app(s), 4 of them no longer in the store.

• Animal sounds - Images4.4★
• Firearm simulator : sounds, noises and images, photos FREE3.4★
• Quiz animal: Calls of the wild2.7★
• Don't push the red button: the famous game! You won't be able to stop !2.6★
• Money converter - Currency4.5★

Alternatives to Unit Converter - Convert all

• Unit Converter - Best Unit App4.8★
• Currency4.8★

Also similar: Convert Any Unit Lite (4.7★), CalConvert: Currency Converter (4.6★), Currency converter: Exchange (4.8★), My Currency Converter & Rates (4.8★)

Questions people ask

How much does Unit Converter - Convert all cost?

Download: Free. Subscriptions start at $2.49 per month.

How do I cancel Unit Converter - Convert all?

On your iPhone open Settings, tap your name, tap Subscriptions, select Unit Converter - Convert all and tap Cancel Subscription. You keep access until the end of the paid period.

Does Unit Converter - Convert all have a free trial?

Yes: Get premium offers a 7 days free trial, then $14.99 per year.

How much does the Conversion Calculator app cost?

The app is free to download and use, with ads displayed. Users can opt for 'Converter Premium' via an auto-renewable subscription to remove ads and unlock additional units. Subscription options include a 1-year renewal for $9.99 (with a 7-day free trial) or a 1-month renewal for $0.99.

Unit Converter - Convert all in one paragraph

Unit Converter - Convert all by oWorld Software is a Travel app for iPhone. Download: Free. Subscriptions start at $2.49 per month across 5 plan(s). App Store rating 4.6 from 13,674 ratings. 12 of 265 reviews in the last 12 months mention charges, subscriptions, refunds or cancelling (5%). The developer has 19 app(s) on the App Store, 4 no longer listed. Cancel through Settings › Subscriptions on the iPhone. Data verified Oct 23, 2026 by AppsLupa.

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