Multiple Calculators vs Lockstar Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Multiple Calculators
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You can use this application when you need many calculators. This application has maximum 10 calculators. When you want to use second calc, you will touch 'B'. Also if you use other calc, you can touch other alphabets. Results will saved until application ended.
Lockstar Smart
Control your smart lock using your smartphone. This application allows you to unlock your door remotely, offering a convenient way to manage access. It provides a simple interface for managing your smart lock.
- Unlock doors with smartphone
- Remote access management
- Simple user interface
- Smart lock integration
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Unlock your door with your smart phone
Screenshots
Verdict
The clearest difference is price: Lockstar Smart at Free against Multiple Calculators's $0.99. Lockstar Smart also leads on update cadence (every 19 months vs every 38 months). On ads, in-app purchases, device support and iOS requirement 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
Lockstar Smart is free to download; Multiple Calculators costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Multiple Calculators ships an update every 38 months, Lockstar Smart every 19 months. The most recent releases landed on September 8, 2026 and October 1, 2026 respectively.
| Parameter | Multiple Calculators | Lockstar Smart |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 3.9 (16 ratings) — better |
| Positive reviews | — | 77.8% of reviews |
| Number of ratings | — | 16 — better |
| Update frequency | Every 38 months | Every 19 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 0 MB | 394 MB |
| Age rating | 4+ | 4+ |
| Developer | Zelda, Inc. | Lockstar Group Ltd |
In-app purchases
Multiple Calculators
No in-app purchases
Lockstar Smart
No in-app purchases
Questions
Is Multiple Calculators free?
Is Lockstar Smart free?
Do Multiple Calculators or Lockstar Smart have ads?
Which is updated more often, Multiple Calculators or Lockstar Smart?
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