Comparison

Library Merger vs SMPW Scheduler

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

Head to head
About

Library Merger

Easily combine two JW Library backups into a single, unified version. Resolve conflicts by choosing which content to keep, ensuring your study materials are consistent across all your devices. This utility streamlines library management for users of JW Library.

Highlights
  • Combine two JW Library backups
  • Resolve content conflicts
  • Restore merged backup to devices
  • Open backups via AirDrop
  • Open-source code
Features
Read full description

You know the problem: You study with JW Library® on different devices - and in the end, you have two versions, that you can’t easily combine anymore. With the Library Merger this is a thing of the past! The Library Merger allows you to quickly and easily combine two JW Library® backups into one. Simply open both backups in the app (you can even send them via AirDrop). The app will merge them into one. If it finds a conflict (like two bookmarks at the same place, or two markings that overlap), you can choose which version to keep. In the end, you have one merged backup which you can easily restore on your devices. The process - if done regularly - literally takes you seconds! Library Merger is still in its early stages and is being actively developed. The code is open source and can be found on GitHub. If you found a bug or have suggestions, feel free to contact me.

About

SMPW Scheduler

Quickly create volunteer rotations with customizable time intervals and multiple locations. Generate color-coded schedules that can be shared as images instantly. Works offline with no account or login required.

Highlights
  • Fast schedule generation
  • Multiple locations
  • Flexible time intervals
  • Color-coded assignments
  • One-tap share
  • Works fully offline
  • Dark mode
Read full description

SMPW Scheduler is the fastest way to build a volunteer rotation. Add names, pick a start and end time, choose an interval, and tap Shuffle. You get a clean, color-coded schedule you can share as an image in one tap. No accounts, no logins, no syncing services to configure — open the app and go. FEATURES • Fast schedule generation — enter volunteers, set a time window, shuffle. • Multiple locations — assign volunteers across two or more spots in a single schedule. • Flexible time intervals — 15, 20, 30, 60 minutes, or a custom length. • Optional date header and scriptural point line. • Color-coded assignments for easy reading. • Dark mode. • One-tap share — sends the schedule as a PNG through Messages, Mail, or any other app. Recipients don't need the app installed. • Save the image directly to Photos. • Works fully offline. PRIVACY SMPW Scheduler does not collect personal information. No accounts, no analytics, no ads, no tracking. Every schedule you build stays on your device. The only network call the app ever makes is to increment a global counter that tracks how many schedules have been generated across all users — no names, no device info, no schedule contents. SUPPORT Questions or feedback? Email branleeharris@gmail.com.

Screenshots

Library Merger3 screens
SMPW Scheduler4 screens

Verdict

The call

The clearest difference is rating: SMPW Scheduler at 5.0 against Library Merger's 4.6. SMPW Scheduler also leads on review sentiment (100% vs 81%) and update cadence (fortnightly vs every 2 months). Library Merger's advantage is ratings volume (39 vs 5). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SMPW Scheduler holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Library Merger has 39 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 81% of Library Merger's written reviews are positive against 100% of SMPW Scheduler's.

UpkeepUpdate frequency

Library Merger ships an update every 2 months, SMPW Scheduler fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Library Merger versus SMPW Scheduler: the parameters behind the verdict, then further details
ParameterLibrary MergerSMPW Scheduler
PriceFreeFree
Rating4.6 (39 ratings)5.0 (5 ratings) — better
Positive reviews81.4% of reviews100.0% of reviews — better
Number of ratings39 — better5
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size14 MB25 MB
Age rating4+4+
DeveloperAndreas SkorczykBrandon Harris

Customer experience

Library Merger

All ratings39 ratings
Positive87.2%
Neutral7.7%
Negative5.1%
Written reviews59 reviews
Positive81.4%
Neutral8.5%
Negative10.2%

SMPW Scheduler

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

In-app purchases

None

Library Merger

No in-app purchases

None

SMPW Scheduler

No in-app purchases

Questions

Is Library Merger free?
Library Merger is free to download, with no in-app purchases.
Is SMPW Scheduler free?
SMPW Scheduler is free to download, with no in-app purchases.
Which has better reviews, Library Merger or SMPW Scheduler?
SMPW Scheduler is rated higher. Library Merger averages 4.6 out of 5 from 39 ratings, while SMPW Scheduler averages 5.0 from 5 ratings.
Do Library Merger or SMPW Scheduler have ads?
Neither Library Merger nor SMPW Scheduler shows ads.
Which is updated more often, Library Merger or SMPW Scheduler?
Library Merger ships an update every 2 months, and SMPW Scheduler fortnightly. Most recently, Library Merger was updated on November 3, 2026 and SMPW Scheduler on October 31, 2026.

Other comparisons