Comparison

almostadoctor vs On

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

Head to head
About

almostadoctor

A comprehensive medical encyclopedia designed for healthcare professionals and students. It offers instant access to over 650 regularly updated articles on various medical topics, all stored offline on your device.

Highlights
  • Offline access to medical articles
  • Over 650 regularly updated articles
  • Favorites section for quick access
  • Internal article linking
  • Automatic and manual content synchronization
  • Email and social sharing of articles
Features
Read full description

A huge medical encyclopaedia written for junior doctors, medical students, nurses and other medical professionals. All of the encyclopaedia content from the almostadoctor website, streamlined for mobile. With over 650 regularly updated articles on practical skills and examinations, data interpretation, OSCE, pharmacology, physiology and, of course, clinical disease presentations. App Features: •All the articles from almostadoctor.com, stored on your device. No loading, no need for an internet connection! Just instant access to the info you need •No subscription and no ads •Favourites section - quickly bookmark your most used articles to get quick access to them from the home screen •All articles linked internally within the app •Automatic updates – new articles downloaded, and current articles updated - content is synchronised with the almostadoctor website weekly, or you can manually sync more frequently •Easily email and share articles with yourself and others via email and social networks For more great almost a doctor resources, including flashcards, mind maps, blogs, and to see our content in all its original glory (including free downloading and printing!), visit almostadoctor.com! If you have any problems, any comments, or want to get involved, please get in touch at tom@almostadoctor.co.uk *Images are not stored on your device, and will be downloaded on demand if a connection is available *Please note - the "Differentialiser" and some of the almostadoctor mind maps are not included in the app - they don't display well on little screens

About

On

Manage on-call shifts and track medical jobs efficiently. Prioritize workload, generate handover summaries instantly, and ensure data privacy with local storage. Designed by a doctor for fast, secure use during busy shifts.

Highlights
  • Track urgent and routine jobs
  • Prioritize workload
  • Generate structured handover summaries
  • Secure local data storage
  • Face ID protection
  • Fast and intuitive interface
Features
Read full description

On-call is the job management app built specifically for doctors working on-call shifts. It gives you a clean, fast way to track jobs, prioritise your workload and hand over safely. Track jobs the way you actually work. Add urgent and routine jobs as the bleeps come in. Handover in seconds. Generate a clean, structured summary in one tap. Send via messages, qr code or airdrop. Your data stays on your device, On-call stores everything locally. No accounts, no cloud sync, no analytics, no tracking. Data never leaves your phone. Face ID protection keeps the app locked between uses. Designed by a doctor, for doctors. Every design decision was made with a busy on-call shift in mind. Fast to open, fast to add a job, fast to clear one when it's done. On-call is completely free.

Screenshots

almostadoctor4 screens
On4 screens

Verdict

The call

The clearest difference is price: On at Free against almostadoctor's $7.99. almostadoctor's advantage is in-app purchases (none vs 1) and iOS requirement (14.0 vs 17.6). On review sentiment, update cadence, ads and device support 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

On is free to download; almostadoctor costs $7.99 up front. On sells 1 one-off in-app purchase. almostadoctor asks for nothing beyond the download.

UpkeepUpdate frequency

almostadoctor ships an update every 11 days, On weekly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
almostadoctor versus On: the parameters behind the verdict, then further details
ParameteralmostadoctorOn
Price$7.99Free — better
Rating4.8 (43 ratings) — better—
Positive reviews92.3% of reviews100.0% of reviews — better
Number of ratings43 — better—
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS14.0 — better17.6
Further details — not scored
Size5 MB8 MB
Age rating17+4+
DeveloperalmostadoctorMohsin Asad Sadiq

Customer experience

almostadoctor

All ratings43 ratings
Positive95.3%
Neutral2.3%
Negative2.3%
Written reviews13 reviews
Positive92.3%
Neutral0.0%
Negative7.7%

On

Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

almostadoctor

No in-app purchases

1 purchases

On

One-time1
  • Buy me a coffee$2.99

Questions

Is almostadoctor free?
almostadoctor costs $7.99, with no in-app purchases.
Is On free?
On is free to download, with in-app purchases available.
Do almostadoctor or On have ads?
Neither almostadoctor nor On shows ads.
Which is updated more often, almostadoctor or On?
almostadoctor ships an update every 11 days, and On weekly. Most recently, almostadoctor was updated on October 24, 2026 and On on October 8, 2026.

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