Comparison

Booked (Previously PTO) vs Peptide Library

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

Head to head
About

Booked (Previously PTO)

This app allows users to book, change, or access scheduled school events like in-person meetings, online sessions, or phone calls. It serves as a mobile extension of a school's web-based booking system. Access is granted through an active school subscription.

Highlights
  • Book scheduled school events
  • Modify existing bookings
  • Access bookings on the go
  • Supports in-person, online, and phone events
  • Mobile extension of web platform
Features
Read full description

Booked is an application that facilitates bookings for scheduled events at a school, whether in person, online, or on a phone call. The mobile application is the perfect extension of the web version, designed for bookings to be made, changed, or accessed on the go. Access requires that the school has an active subscription to Booked. *** Having problems logging in? Contact the school for assistance - it might be something basic, like your email address or login details aren't up to date, or the event may not be opened yet. ***

About

Peptide Library

Features
Read full description

Peptide Library helps you track your peptide Cycle and research peptides and compounds in one place. Track your Cycle See what's scheduled today, record completed items, check your week, and use the calendar to look ahead or review what you've tracked. Build your Stack Add the compounds you're tracking, organize your schedule, set reminders, and keep your current Cycle in one place. Follow your progress Set goals, add measurements, and follow changes over time. Track weight and other measurable goals, along with check-ins for sleep, recovery, skin, and energy. Research peptides & compounds Explore an editorial library covering peptides and related compounds, with research context, safety information, administration information where supported, and source-backed references. Made for personal tracking Your Stack, amounts, schedules, goals, and measurements are entered by you. Peptide Library does not recommend compounds, combinations, dosages, or treatment protocols. Peptide Library is intended for educational and personal tracking purposes. It is not medical advice and is not a substitute for advice, diagnosis, or treatment from a qualified healthcare professional.

Screenshots

Booked (Previously PTO)4 screens
Peptide Library4 screens

Verdict

The call

The clearest difference is update cadence: Peptide Library at every 5 days against Booked (Previously PTO)'s every 2 months. Booked (Previously PTO)'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Booked (Previously PTO) ships an update every 2 months, Peptide Library every 5 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

Scorecard3 real differences ยท 5 level
Booked (Previously PTO) versus Peptide Library: the parameters behind the verdict, then further details
ParameterBooked (Previously PTO)Peptide Library
PriceFreeFree
Positive reviews6.7% of reviewsโ€”
Update frequencyEvery 2 monthsEvery 5 days โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size5 MB16 MB
Age rating4+4+
DeveloperCountryNet SoftwareJay Park

In-app purchases

None

Booked (Previously PTO)

No in-app purchases

None

Peptide Library

No in-app purchases

Questions

Is Booked (Previously PTO) free?
Booked (Previously PTO) is free to download, with no in-app purchases.
Is Peptide Library free?
Peptide Library is free to download, with no in-app purchases.
Do Booked (Previously PTO) or Peptide Library have ads?
Neither Booked (Previously PTO) nor Peptide Library shows ads.
Which is updated more often, Booked (Previously PTO) or Peptide Library?
Booked (Previously PTO) ships an update every 2 months, and Peptide Library every 5 days. Most recently, Booked (Previously PTO) was updated on October 24, 2026 and Peptide Library on October 14, 2026.

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