SMS Shield vs Plain Units
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
SMS Shield
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SMS Shield automatically filters and blocks spam, junk, and unwanted text messages ā all on your device. No cloud, no data sharing. Powered by AI-based detection and custom keyword blocking. Set up in seconds, enjoy a clean inbox forever. Privacy Policy: https://sites.google.com/view/privacy-policy-sms-shield/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Plain Units
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Simple Unit Converter is a calm, numeric-first converter that gets out of your way. Pick a category, type into any field, and every other unit on the page updates instantly. No account, no sign-in, no clutter. 14 CATEGORIES ⢠Length ⢠Mass ⢠Temperature ⢠Time ⢠Speed ⢠Area ⢠Volume ⢠Digital Storage ⢠Data Transfer Rate ⢠Energy ⢠Frequency ⢠Fuel Economy ⢠Plane Angle ⢠Pressure WHY YOU'LL LIKE IT ⢠Type into any unit, not just a "from" box. Every other unit converts as you type. ⢠All units in a category are visible at once, so you never dig through pickers. ⢠Searchable category grid to jump straight to what you need. ⢠Tap a result to copy a clean, paste-ready value. ⢠Remembers your last category, unit, and value between launches. ⢠Light and dark mode, and works on iPhone and iPad. ⢠Everything runs on your device. No servers, no analytics, no tracking of your conversions. REMOVE ADS The free version shows ads. A one-time purchase removes them forever and restores on all your devices signed in to the same Apple Account.
Screenshots
Verdict
The clearest difference is ads: SMS Shield at none against Plain Units's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. SMS Shield sells 1 one-off in-app purchase and Plain Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | SMS Shield | Plain Units |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 3 weeks |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad ā better |
| Requires iOS | 17.0 | 16.4 ā better |
| Further details ā not scored | ||
| Size | 13 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Mine Nur Kasimogullari | Nicolaus Lawson |
In-app purchases
SMS Shield
- Lifetime$9.99
Plain Units
- Remove Ads$3.99








