Comparison

Backlog by Time Engine vs Bitslips

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

Head to head
About

Backlog by Time Engine

Features
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Backlog is a time based todo list, add an backlog, add items and subitems to it, associate it with a time amount representing a how much it will take to be done with it. Backlog adds all your items time and show how much workload you have. Simply check and uncheck items, move them to prioritize them or delete them.

About

Bitslips

Features
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Bitslips The fastest note taking app to add whatever you need, now. It‘s one endless note. You don‘t think about where to put what. You just write it down and it's there. Everything is saved as you type. There are many other ways to add notes to Bitslips: ・Share Menu: "Add Note to Bitslips" appears in many Share Menus across the system. ・Shortcuts: You can use the "Add Note" Action in your Shortcuts. ・URL Scheme: You can call bitslips://addNote?text=Blablabla ・x-callback-url: Use an advanced URL scheme by calling bitslips://x-callback-url/addNote?text=Blablabla&x-success=GoHereAfterwards. See https://x-callback-url.com for more info. Bitslips is completely free to use for the first 10 notes. If you upgrade to the Full Version using you get: ・Unlimited notes ・Sync via iCloud to other devices running the Bitslips app. Full Version is offered as an in app subscription. ・Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ・Privacy Policy: https://zoziapps.ch/app-privacy-policy/

Screenshots

Backlog by Time Engine4 screens
Bitslips2 screens

Verdict

The call

The clearest difference is in-app purchases: Backlog by Time Engine at none against Bitslips's 2. Bitslips's advantage is update cadence (weekly vs every 3 weeks) and device support (3 vs 1). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bitslips sells 2 in-app purchases, starting at $0.99 per month. Backlog by Time Engine asks for nothing beyond the download.

UpkeepUpdate frequency

Backlog by Time Engine ships an update every 3 weeks, Bitslips weekly. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 3 level
Backlog by Time Engine versus Bitslips: the parameters behind the verdict, then further details
ParameterBacklog by Time EngineBitslips
PriceFreeFree
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS16.4 — better17.6
Further details — not scored
Size3 MB1 MB
Age rating4+4+
Developer100-8 StudioZozi Apps

In-app purchases

None

Backlog by Time Engine

No in-app purchases

2 purchases

Bitslips

Subscriptions2
  • Full Version – Monthly$0.991 Month
  • Full Version – Yearly$9.991 Year

Questions

Is Backlog by Time Engine free?
Backlog by Time Engine is free to download, with no in-app purchases.
Is Bitslips free?
Bitslips is free to download, with in-app purchases available.
Do Backlog by Time Engine or Bitslips have ads?
Neither Backlog by Time Engine nor Bitslips shows ads.
Which is updated more often, Backlog by Time Engine or Bitslips?
Backlog by Time Engine ships an update every 3 weeks, and Bitslips weekly. Most recently, Backlog by Time Engine was updated on September 19, 2026 and Bitslips on September 22, 2026.

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