Comparison

Private Library vs Shelf Track

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

Head to head
About

Private Library

Features
Read full description

A Calibre iOS client that connects to Calibre's content server. Note! This is for those who manage e-books with calibre.That the app does not provide any books. - You can browse the eBook in Calibre. - Monitor the health status of Calibre content services in real time. - You can sort e-books based on different criteria. - View the details of the eBook. - Different libraries can be switched, just like a real bookshelf. - You can switch between different content servers.

About

Shelf Track

Easily track your belongings across different locations like pantries, garages, or closets. Organize items by shelf, add photos and notes, and quickly search or filter to manage quantities. Sync your data across devices with Google or Apple sign-in.

Highlights
  • Organize by shelf
  • Track item quantities
  • Add photos and notes
  • Search and filter items
  • Sync across devices
  • Simple interface
Features
Read full description

shelf track is for people who just want a simple, steady sense of what they have. pantry, garage, closet, random bin, all of it. organize by shelf set things up however makes sense to you. pantry, garage, a box, a whole room, whatever. add items, track quantities, and stop guessing what’s actually left. make things easy to spot add a photo if it helps, or just pick a quick icon. drop in notes when you need them so future you knows what you meant. find and adjust fast search, filter by shelf, sort how you like. when you’re in a rush, you can update quantities without digging through extra screens. stay in sync sign in with google or apple and everything stays backed up and in sync. your preferences come with you too, so it feels the same wherever you open it. your setup, your account manage shelves, tweak names, check settings, read the faq if you want. it’s meant to be simple now and flexible later. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Private Library4 screens
Shelf Track4 screens

Verdict

The call

The clearest difference is price: Shelf Track at Free against Private Library's $1.99. Shelf Track also leads on update cadence (weekly vs every 18 months). On ads, in-app purchases, device support 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

Shelf Track is free to download; Private Library costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Private Library ships an update every 18 months, Shelf Track weekly. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 7 level
Private Library versus Shelf Track: the parameters behind the verdict, then further details
ParameterPrivate LibraryShelf Track
Price$1.99Free — better
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 18 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size9 MB38 MB
Age rating4+4+
Developer艳华 顾Samuel Snow

In-app purchases

None

Private Library

No in-app purchases

None

Shelf Track

No in-app purchases

Questions

Is Private Library free?
Private Library costs $1.99, with no in-app purchases.
Is Shelf Track free?
Shelf Track is free to download, with no in-app purchases.
Do Private Library or Shelf Track have ads?
Neither Private Library nor Shelf Track shows ads.
Which is updated more often, Private Library or Shelf Track?
Private Library ships an update every 18 months, and Shelf Track weekly. Most recently, Private Library was updated on October 27, 2026 and Shelf Track on October 15, 2026.

Other comparisons