Comparison

TNMaker Pro vs OLM Marker

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

Head to head
About

TNMaker Pro

Effortlessly grade multiple-choice tests using your phone's camera. This tool helps educators quickly scan student answer sheets, provides instant scoring, and allows for easy review and sharing of results.

Highlights
  • Scan multiple-choice tests with camera
  • Automatic scoring
  • Review and sort results
  • Share results via social media/email
  • Customizable number of questions
  • Printable answer sheets
Read full description

Functions: + TNMaker will be very helpful for teachers to mark for multiple choice test, rather than using their hands or using a dedicated scanner. + Just use the teacher's phone to mark the students' multiple choice test quickly. + The app allows reviewing, sorting, and sharing right away with facebook, zalo, gmail... +The application allows you to customize the number of sentences and give the correct score for each sentence. Usage Guide: - Notice : App need using camera permission and storage permission to read data. - First : You link to tnmaker.wordpress.com or Setting-> AnswerPaper to download the answer sheets (support for sample 50), next you should print in format or scale (small, large). - Key: Used to scan a key. This is the correct answer to compare when scanning. You should fill in the circle and choose only a answer for each sentence. If you are not satisfied, you should rescan or save to complete the your key.You can review your key in Review-> Menu-> Key. - Scan: Use to scan your answer, you should move the camera to the 4 corners of the answer sheets, the red square will blink.The application will detect 4 corners and find the correct answer, the correct answer will be green , the incorrect answer will be red. Notice your will only select a answer, the application will view the correct number of sentences for each sentence and the score you get. Next you should click Back to scan the next answer sheets, if you do not find the square, you should move your camera and adjust them. - Review: You can review to your key or answer, click on the item and review your answer, you can delete and share it with facebook, zalo, gmail by hold in the item. Besides, you can select the menu and have some options, you can sort the list and share it to facebook...It is helpful, your list is too long, you should delete all of them and start a new multiple choice test. - Setting: Support for you with some options, you can choose the number of sentences to your score caculator, there are 20, 40, 50 .Easy to get answer sheets on your phone and watch the video tutorial. - Feedback: We are always trying to complete the application. Any feedback, you can send an email to tracnghiemmaker@gmail.com. Your comments will help more and get better.

About

OLM Marker

Features
Read full description

Ứng dụng miễn phí giúp giáo viên chấm điểm trắc nghiệm một cách dễ dàng nhất

Screenshots

TNMaker Pro4 screens
OLM Marker4 screens

Verdict

The call

The clearest difference is price: OLM Marker at Free against TNMaker Pro's $7.99. OLM Marker also leads on iOS requirement (13.5 vs 15.0). TNMaker Pro's advantage is update cadence (every 8 days vs every 3 weeks). On ads, 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

OLM Marker is free to download; TNMaker Pro costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TNMaker Pro ships an update every 8 days, OLM Marker every 3 weeks. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
TNMaker Pro versus OLM Marker: the parameters behind the verdict, then further details
ParameterTNMaker ProOLM Marker
Price$7.99Free — better
Rating4.3 (8 ratings) — better—
Positive reviews70.6% of reviews—
Number of ratings8 — better—
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.5 — better
Further details — not scored
Size19 MB8 MB
Age rating4+4+
DeveloperVinh LeTho Ha Duc

In-app purchases

None

TNMaker Pro

No in-app purchases

None

OLM Marker

No in-app purchases

Questions

Is TNMaker Pro free?
TNMaker Pro costs $7.99, with no in-app purchases.
Is OLM Marker free?
OLM Marker is free to download, with no in-app purchases.
Do TNMaker Pro or OLM Marker have ads?
Neither TNMaker Pro nor OLM Marker shows ads.
Which is updated more often, TNMaker Pro or OLM Marker?
TNMaker Pro ships an update every 8 days, and OLM Marker every 3 weeks. Most recently, TNMaker Pro was updated on September 21, 2026 and OLM Marker on September 20, 2026.

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