LumoCalculatorVault vs LimitBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LumoCalculatorVault
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[Hide photos no one should see — inside this calculator.] Calc+ looks and works like an ordinary calculator. But enter your secret 4-digit passcode, and a hidden photo album appears. Hand your phone to a friend. Let your partner browse your home screen. No one will ever suspect this app is anything but a calculator. ■ Perfect camouflage The icon, the interface, the functionality — it's a real calculator. Portrait mode for basic math, landscape for a full scientific calculator. Use it every day without raising suspicion. ■ 'Show me' — no problem. Calc+'s killer feature: the Decoy Password. If someone asks you to open the app, just enter your decoy code. An empty fake album opens — with no settings button visible. Your real secrets remain completely hidden. ■ No biometrics — by design. Face ID and Touch ID are convenient, but they can be forced — while you're asleep, or simply by pointing your phone at your face. Calc+ relies only on a 4-digit passcode that exists nowhere but in your mind. No one can force what they can't see. ■ Photos and videos, safely stored Save photos and videos inside the app. Smooth playback, folder organization, pinch-to-zoom grid — it feels just like your regular album. ■ Premium Plan (one-time purchase) Pay once, unlock everything forever. No monthly fees. No recurring charges on your credit card statement. · Unlimited photo & video storage · Decoy password feature Protect your secrets with Calc+ — starting today.
LimitBox
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LimitBox is a private vault designed to securely store your photos, videos, PDFs, documents, and other important files. Protected by Face ID, secured with AES-256 encryption, and equipped with a built-in Self-Destruct Timer for unexpected situations. Your most important data stays protected—until the very end. Key Features • Secure unlocking with Face ID / Touch ID • Store photos, videos, PDFs, documents, and more • Optimized for large files • Automatically erase data after repeated incorrect passcode attempts • Self-Destruct Timer that automatically deletes data at a scheduled time • Available on iPhone, iPad, and Mac • Private device-to-device file transfer with no cloud required • Easily import files via Shared Inbox Security • AES-256-GCM encryption for strong data protection • Secure key management with Apple Keychain • PBKDF2-based passcode protection About Plans Basic features are available for free. The following limitations apply to the free plan: [File Upload Limits] Photos: Up to 20 Videos: Up to 3 PDFs: Up to 10 TEXT files: Up to 3 Other files: Up to 3 [Feature Limitations] P2P communication: Up to 1GB Custom icon: Some services are unavailable. Upgrade to Premium to remove these limits Important • If you forget your passcode, your data cannot be recovered. • Data deleted by the Self-Destruct feature or by uninstalling the app cannot be restored. Terms of Service: https://limitbox-lp.vercel.app/terms?lang=en Privacy Policy: https://limitbox-lp.vercel.app/privacy?lang=en
Screenshots
Verdict
The clearest difference is in-app purchases: LimitBox at none against LumoCalculatorVault's 1. LimitBox also leads on update cadence (every 2 days vs monthly) and device support (3 vs 1). On price and ads 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. LumoCalculatorVault sells 1 one-off in-app purchase. LimitBox asks for nothing beyond the download.
LumoCalculatorVault ships an update monthly, LimitBox every 2 days. The most recent releases landed on September 23, 2026 and August 3, 2026 respectively.
| Parameter | LumoCalculatorVault | LimitBox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Atsuhiro Inoue | hiroaki kawase |
In-app purchases
LumoCalculatorVault
- Premium$3.99
LimitBox
No in-app purchases
Questions
Is LumoCalculatorVault free?
Is LimitBox free?
Do LumoCalculatorVault or LimitBox have ads?
Which is updated more often, LumoCalculatorVault or LimitBox?
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