Comparison

iodyne vs App Lock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

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.

Highlights
  • On-device app locking
  • PIN protection
  • Category and allow-only rules
  • Guest Mode
  • Scheduled protection windows
  • Face ID/Touch ID unlock
  • Privacy-focused design
Features
Read full description

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

iodyne4 screens
App Lock3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
iodyne versus App Lock: the parameters behind the verdict, then further details
ParameteriodyneApp Lock
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings5 — better1
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size50 MB10 MB
Age rating4+17+
Developeriodyne, LLC桥 王

Customer experience

iodyne

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

App Lock

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iodyne

No in-app purchases

3 purchases

App Lock

Subscriptions2
  • Lockstead VIP Monthly$0.991 Month
  • Lockstead VIP Yearly$4.991 Year
One-time1
  • Lockstead Lifetime VIP$7.99

Questions

Is iodyne free?
iodyne is free to download, with no in-app purchases.
Is App Lock free?
App Lock is free to download, with in-app purchases available.
Which has better reviews, iodyne or App Lock?
iodyne and App Lock are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do iodyne or App Lock have ads?
Neither iodyne nor App Lock shows ads.
Which is updated more often, iodyne or App Lock?
iodyne ships an update every 3 weeks, and App Lock every 2 weeks. Most recently, iodyne was updated on October 28, 2026 and App Lock on October 31, 2026.

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