Comparison

Messly vs On

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

Head to head
About

Messly

Features
Read full description

Messly is a faster, simpler and more transparent way to find locum work. Make your free anonymous profile with your locum wishlist and get pitched relevant locum jobs from the best locum agencies before you've shared your contact details. All our agencies are vetted and chosen based on doctor's feedback. See locum jobs from all of the best agencies up-front, before you’ve shared your personal details. More choice means better rates, less travel and your pick of departments. You manage everything from your mobile, around your schedule, with nifty tools to save you time. Trusted by over 12,000 locum doctors. We’re rated number #1 by doctors looking for locum work.

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

Messly4 screens
On4 screens

Verdict

The call

The clearest difference is in-app purchases: Messly at none against On's 1. Messly also leads on iOS requirement (12.0 vs 17.6). On's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. On sells 1 one-off in-app purchase. Messly asks for nothing beyond the download.

UpkeepUpdate frequency

Messly ships an update every 2 months, On weekly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

Scorecard3 real differences Β· 5 level
Messly versus On: the parameters behind the verdict, then further details
ParameterMesslyOn
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 2 monthsWeekly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
Monetizationβ€”Free
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS12.0 β€” better17.6
Further details β€” not scored
Size37 MB8 MB
Age rating4+4+
DeveloperMesslyMohsin Asad Sadiq

In-app purchases

None

Messly

No in-app purchases

1 purchases

On

One-time1
  • Buy me a coffee$2.99

Questions

Is Messly free?
Messly is free to download, with no in-app purchases.
Is On free?
On is free to download, with in-app purchases available.
Do Messly or On have ads?
Neither Messly nor On shows ads.
Which is updated more often, Messly or On?
Messly ships an update every 2 months, and On weekly. Most recently, Messly was updated on October 6, 2026 and On on October 8, 2026.

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