iodyne vs App Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iodyne
Manage and monitor your storage devices with this utility app. Unlock iodyne drives using passkeys and scan NFC tags for other devices. Track file transfers and view workflow metadata in real-time.
- Unlock iodyne drives with passkeys
- Scan NFC tags for non-iodyne drives
- View device provisioning metadata
- Monitor file transfers in real-time
- Manage workflow metadata
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iodyne Utility enables you to interact your with fleet of storage devices in the field. Unlock smart iodyne drives using passkeys with the tap of your phone. Scan smart NFC tags for non-iodyne drives. View device provisioning and workflow metadata from your iodyne Cloud projects. Keep tabs on in-progress file transfers and workflows with the real-time Watchlist. PASSKEYS and TAP-to-UNLOCK In place of insecure passwords, PIN codes, and keypads, iodyne Utility provides the industry’s first implementation of Passkeys for a portable storage drive. Just like a modern website, iodyne Utility allows multiple authorized users to establish personal and secure Passkeys that are stored in your phone’s Secure Enclave. Unlock your iodyne Pro Mini with a tap of your phone. SMART NFC STICKERS Label other storage devices in your fleet with iodyne’s smart NFC Sticker, securely linking each asset to your iodyne Cloud Projects and Devices inventory. Scan the sticker with a tap of your phone to look up device provisioning and Project workflow metadata. REAL-TIME WATCHLIST Add busy drives to a real-time Watchlist that relays live workflow progress from your iodyne device to your phone. Once your workflow is running, you can manage other tasks on-set while you receive real-time notifications if your task is complete or requires your attention. WORKFLOW METADATA iodyne Utility can view and store customized workflow metadata that can be retrieved with an NFC tap, or viewed when the utility connects to iodyne Cloud. Use Workflow Metadata to record times, dates, project codes, shipping locations, billing codes, and more.
App Lock
This app acts as a privacy guard and app locker for your iPhone or iPad, allowing you to select specific apps to protect with a PIN. It offers flexible rules like category blocking and guest mode, ensuring your device remains secure when shared.
- On-device app locking
- PIN protection
- Category and allow-only rules
- Guest Mode
- Scheduled protection windows
- Face ID/Touch ID unlock
- Privacy-focused design
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Lock the apps you do not want others to open. Lockstead helps you restrict selected apps on your own iPhone or iPad using Apple Screen Time. Choose apps to block, enable protection, or set weekdays and times for restrictions. Protect access to Lockstead settings with your six-digit PIN and optional Face ID or Touch ID. VIP GUEST MODE Choose specific apps, select a duration from 15 minutes to 12 hours, and confirm the session. Lockstead applies an allowlist to supported apps through Screen Time. Try opening an allowed app and a restricted app before handing over your device. CHOOSE, APPLY, CHECK Block selected apps, set protection schedules, or temporarily allow access. Guest Mode takes priority over normal lock and temporary-access rules. When it ends, Lockstead reapplies the rules for that time; it does not simply unlock everything. iOS background scheduling can delay changes. FOR EVERYDAY HANDOFFS Let a friend use a map or lend your iPad for reading, with the apps needed for that session. Content inside allowed apps remains accessible. Guest Mode does not create a separate user account or separate app data. FREE CORE, OPTIONAL VIP Core protection for one selected app is free. VIP adds multi-app management, Guest Mode, advanced rules, app-removal controls, themes and alternate icons. Choose a monthly or yearly auto-renewing subscription, or a one-time lifetime VIP purchase. Prices are shown by your regional App Store. SETTINGS ON YOUR DEVICE Protect access to Lockstead with a six-digit PIN and optional Face ID or Touch ID. No app account, developer backend, advertising SDK or analytics SDK. Protection settings stay on your device; purchases use Apple services. Requires iOS/iPadOS 17 or later and Screen Time authorization. Availability and enforcement depend on iOS. Restrictions do not encrypt files, guarantee hidden icons or suppress notifications. This is not remote device management. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://materialofair.github.io/lockstead-site/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: iodyne at none against App Lock's 3. iodyne also leads on ratings volume (5 vs 1). On price, rating, update cadence 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. App Lock sells 3 in-app purchases, starting at $0.99 per month. iodyne asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for iodyne against 5.0 for App Lock. That said, the two scores are not equally well evidenced: iodyne has 5 ratings behind it against 1, so its average is the more settled of the two.
iodyne ships an update every 3 weeks, App Lock every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | iodyne | App Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | iodyne, LLC | 桥 王 |
Customer experience
iodyne
App Lock
In-app purchases
iodyne
No in-app purchases
App Lock
- Lockstead VIP Monthly$0.991 Month
- Lockstead VIP Yearly$4.991 Year
- Lockstead Lifetime VIP$7.99









