Comparison

PartCycle vs PlainLock

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

Head to head
About

PartCycle

Features
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PartCycle is a maintenance tracker designed for equipment consumables, parts, and replacement cycles. Record installation dates, set replacement intervals, receive reminders, and keep a clear history of every part you replace. Use PartCycle for water filters, home appliances, vehicle parts, office equipment, tools, machines, or any item that needs regular replacement. Key features: ・Part life tracking Set an installation date and replacement cycle for each part. PartCycle helps you see what is healthy, due soon, or overdue. ・Replacement reminders Choose when you want to be reminded before a part expires. Get notifications when maintenance is coming up or already overdue. ・Equipment and parts management Create equipment profiles and assign related parts to them. Keep filters, batteries, accessories, and consumables organized by device. ・Photos and thumbnails Attach photos to parts and equipment so you can quickly identify models, locations, and details. ・Replacement history Record each replacement and easily check when a part was last changed. ・Offline-first experience Your data is stored locally first, so you can manage your parts even without an internet connection. ・Pro A one-time purchase that unlocks local capacity for 200 parts and 50 equipment. Cloud sync is not included. ・Premium Unlock 1000 parts, 300 equipment, cloud sync, and backup. Download PartCycle and make maintenance easier, clearer, and more reliable. Privacy Policy: https://docs.google.com/document/d/10kBJ0UT7iY1FueKgsL1pfncuJGCyRkwuVWsayfd-8Lc/view Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PlainLock

Features
Read full description

PlainLock is a deliberately simple screen-time self-control tool. TWO WAYS TO SET A LIMIT • Schedule blocks: choose days and times, then the selected apps are blocked. • Daily limits: after the minutes you set are used, the apps stay blocked until tomorrow. • Shared group limits: put distracting apps in one group so switching apps cannot bypass the limit. • Group app limit: each group supports up to 50 apps, with a clear message when the limit is exceeded. • Cooling-off period: when you really need temporary access, wait 5 seconds, then unlock for the short duration you chose. LANGUAGES • Available in Traditional Chinese, English, Japanese, and Spanish. READ BEFORE YOU BUY • One purchase. No subscription. No in-app purchases. • Every rule stays on your device. The app makes no network requests and collects no app data. • This is a self-control tool, not a security tool. You can always remove restrictions by disabling its Screen Time permission in Settings. • Applying or clearing a block depends on iOS scheduling and can take one to two minutes. • Requires iOS 17.0 or later. Only iOS versions tested at release are supported; future compatibility and continuing updates are not guaranteed.

Screenshots

PartCycle4 screens
PlainLock4 screens

Verdict

The call

The clearest difference is price: PartCycle at Free against PlainLock's $2.99. PartCycle also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). PlainLock's advantage is in-app purchases (none vs 3) and update cadence (every 5 days vs every 10 days). On 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

PartCycle is free to download; PlainLock costs $2.99 up front. PartCycle sells 3 in-app purchases, starting at $1.49 per month. PlainLock asks for nothing beyond the download.

UpkeepUpdate frequency

PartCycle ships an update every 10 days, PlainLock every 5 days. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

Scorecard5 real differences · 1 level
PartCycle versus PlainLock: the parameters behind the verdict, then further details
ParameterPartCyclePlainLock
PriceFree — better$2.99
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size175 MB3 MB
Age rating4+4+
DeveloperHANGRUEI WENChang Jhih Yeh

In-app purchases

3 purchases

PartCycle

Subscriptions2
  • Premium Monthly7 Days trial$1.491 Month
  • Premium Yearly7 Days trial$6.491 Year
One-time1
  • Pro Lifetime$11.99
None

PlainLock

No in-app purchases

Questions

Is PartCycle free?
PartCycle is free to download, with in-app purchases available.
Is PlainLock free?
PlainLock costs $2.99, with no in-app purchases.
Do PartCycle or PlainLock have ads?
Neither PartCycle nor PlainLock shows ads.
Which is updated more often, PartCycle or PlainLock?
PartCycle ships an update every 10 days, and PlainLock every 5 days. Most recently, PartCycle was updated on September 22, 2026 and PlainLock on September 14, 2026.

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