Simple VAT vs uidChecker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple VAT
Quickly calculate VAT and sales tax by adding or removing it from any amount. Supports rates for 59 countries and custom rates for specific regions. Results update instantly as you type.
- Add or remove tax instantly
- Supports 59 countries' VAT rates
- Customizable sales tax rates
- Real-time result updates
- Copy results with a press and hold
- Remembers settings
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Simple VAT is the quickest way to work out VAT and sales tax. Type an amount, tap Add or Remove, and see the pre-tax amount, the total and the tax straight away. ADD OR REMOVE TAX • Add tax to a pre-tax price to get the total • Remove tax from a tax-inclusive price to get the pre-tax amount and the tax paid • Results update as you type VAT FOR TRAVEL, IMPORTS AND EU INVOICES • Check what VAT is included in prices when you shop or travel abroad • Work out VAT on imports and on invoices from European suppliers or clients • Rates for 59 countries, including the UK, Ireland, Germany, France, Spain, Italy, the Netherlands, Canada, Mexico, Japan and Australia • Tap More to pick any country SALES TAX AS A CUSTOM RATE The US has no national VAT, so enter your state's sales tax rate (or your combined state and local rate) as a custom rate. It works for any other special rate, too. SIMPLE AND CLEAR • Big, clear numbers you can read at a glance • Press and hold a result to copy it • Remembers your amount, rate and mode • Works on iPhone and iPad, in 35 languages
uidChecker
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Mit uidChecker können Sie eine beliebige europäische Umsatzsteuer ID auf ihre Gültigkeit prüfen
Screenshots
Verdict
The clearest difference is update cadence: uidChecker at every 6 days against Simple VAT's every 6 months. uidChecker also leads on iOS requirement (7.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Simple VAT ships an update every 6 months, uidChecker every 6 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Simple VAT | uidChecker |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 47.4% of reviews | — |
| Update frequency | Every 6 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | +4 | 4+ |
| Developer | OKD Limited | Reinhard Haug |
In-app purchases
Simple VAT
No in-app purchases
uidChecker
No in-app purchases






