Comparison

TimeMark Edition™ vs Datum

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

Head to head
About

TimeMark Edition™

Features
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Capture the moment. Keep the context. ProofCam is a real-time TimeMark camera designed to add useful date, time, location and GPS information directly to your photos. Whether you're documenting field work, construction progress, inspections, maintenance, property conditions or everyday records, ProofCam makes it easy to capture photos together with the information that matters. REAL-TIME TIMEMARK See your TimeMark directly in the camera while capturing. Date, time, location and GPS information are displayed clearly so you know how your photo will look before you take it. CUSTOMIZABLE STAMP STYLES Choose from multiple professional TimeMark templates and select the layout that works best for your photos. DATE & TIME Add clear date and time information directly to captured photos with customizable display options. LOCATION & GPS Add location information and GPS coordinates when location access is enabled. ProofCam remains useful even when you choose not to use location. WORKSPACES Keep work photos organized by project or job site, making it easier to manage photo records from different locations and tasks. PHOTO RECORDS Review your captured photo together with its TimeMark information before saving or sharing. BUILT FOR REAL-WORLD WORK ProofCam is useful for: • Construction progress • Field work • Property inspections • Maintenance records • Installation documentation • Delivery records • Site visits • Before & after photos • Personal photo records SIMPLE BY DESIGN ProofCam is designed around a fast workflow: Open the camera. Check your TimeMark. Capture. Save. No complicated setup is required. Download ProofCam and create clearer photo records with real-time date, time and GPS context.

About

Datum

Features
Read full description

Proof of when and where, stamped on every photo. Datum is a timestamp and GPS camera for people who document work. Every shot is stamped with the time, the date and time zone, the street address, the GPS coordinates, the accuracy of the fix and the compass heading, all measured at the moment the shutter fired. WHAT GETS STAMPED - Time, date and time zone, so a photo still reads correctly wherever it was taken. - Street address, geocoded from your location at capture. - Latitude and longitude, with GPS accuracy in meters and the compass heading. This is the line that separates a nice photo from a photo that answers questions. - Your company name and logo, set once (Pro). MEASURED IS LOCKED, AUTHORED IS YOURS The time, the coordinates, the accuracy and the heading are measured by your iPhone, and the app gives you no way to edit them. What you write, the label on the stamp and the note on a photo, stays yours to change at any time. Datum records what the device measured and will not let you move it. It does no network verification and claims no legal certification. THE STAMP IS NEVER BURNED IN Your original photo is kept exactly as the sensor wrote it. The stamp is composed on top at the moment the photo is shown, shared or exported. That is what lets you reposition it, restyle it, or apply a new look to an entire job weeks after the visit, without ever altering the original file. BUILT FOR SPEED ON SITE - Volume buttons fire the shutter, so it works with gloves on. - Camera Control support on iPhone 16 and later. - No review screen after a shot. Frame, fire, keep moving. - An honest GPS accuracy chip, green, amber or red, so you know what the fix is worth before you rely on it. - A high-contrast dark interface that stays readable in direct sun. JOBS AND PDF REPORTS Photos group into jobs, one visit to one site. A job names itself from the date and the street it started on. When you are done, export the whole job as a PDF report with the photos, your labels and notes, and a map page showing where each shot was taken. Send it before you leave the site. WE NEVER READ YOUR PHOTO LIBRARY Datum never asks for access to your photos. To bring an existing picture into a job you use the system picker, which hands over only the image you chose. The app sees nothing else. Imported photos are marked as imported in the report, and when a file carries no location we show the date alone rather than invent a position. WORKS WHERE THE SIGNAL DOES NOT No account, no sign-in, no server. Everything stays on your iPhone. If an address cannot be looked up on site, Datum falls back to the last known address, then to raw coordinates. The shot is never blocked and never delayed. FREE AND PRO Free: unlimited stamped photos, one active job, the Proof stamp theme, notes and imports, and one watermarked PDF export. Pro: unlimited jobs, all three stamp themes, unlimited PDF reports with no watermark, and your company logo on every photo. WHO IT IS FOR Plumbers, electricians, HVAC and roofing crews, property inspectors, insurance adjusters, surveyors, delivery drivers, landlords running move-in and move-out. Anyone who has ever needed to show when and where a photo was taken. Privacy Policy: https://anthopak.dev/datum/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TimeMark Edition™4 screens
Datum4 screens

Verdict

The call

The clearest difference is ads: Datum at none against TimeMark Edition™'s shown. Datum also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases 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

Both are free to download. TimeMark Edition™ sells 1 one-off in-app purchase and Datum sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TimeMark Edition™ ships an update every 3 weeks, Datum monthly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 4 level
TimeMark Edition™ versus Datum: the parameters behind the verdict, then further details
ParameterTimeMark Edition™Datum
PriceFreeFree
Update frequencyEvery 3 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size11 MB52 MB
Age rating4++4
DeveloperNguyen NghiemAnthonin Cocagne

In-app purchases

1 purchases

TimeMark Edition™

One-time1
  • Timemark Pro Lifetime$4.99
2 purchases

Datum

Subscriptions2
  • Weekly Premium3 Days trial$7.997 Days
  • Annual Premium$34.991 Year

Questions

Is TimeMark Edition™ free?
TimeMark Edition™ is free to download, with in-app purchases available.
Is Datum free?
Datum is free to download, with in-app purchases available.
Do TimeMark Edition™ or Datum have ads?
TimeMark Edition™ shows ads; Datum does not.
Which is updated more often, TimeMark Edition™ or Datum?
TimeMark Edition™ ships an update every 3 weeks, and Datum monthly. Most recently, TimeMark Edition™ was updated on October 28, 2026 and Datum on October 29, 2026.

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