Comparison

MermaidEditor vs do over

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

Head to head
About

MermaidEditor

Create and edit diagrams and charts using mermaid-js syntax with real-time preview. Export your creations as PNG or SVG files and share them across all your Apple devices.

Highlights
  • Mermaid-js syntax highlighting
  • Code completion
  • Instant preview
  • Export to PNG/SVG
  • Cross-device editing
  • QuickLook preview extension
Features
Read full description

MermaidEditor is a diagram and chart editor, powered by mermaid-js. And MermaidEditor supports iPhone, iPad and Mac, with one app you can edit diagram everywhere on any device. MermaidEditor supports mermaid-js syntax highlighting and code completion, so it can help writing diagram and chart clearly, easily and quickly. You can also easily export charts as PNG images or SVG files from the editor, or share image to other people with system actions. √ All Platforms - Both Mobile and Desktop platforms supported, you can edit diagram documents on iPhone, iPad or Mac - Document browser based app, easily edit files on device and sync document between devices - Multiple windows ready, it makes the editor more powerful on iPadOS - Keyboard shortcuts ready on iPadOS with keyboard connected √ Powerful Editor - Syntax Highlighting for mermaid-js grammar - Auto Completion in editor helps typing keywords quickly - Code Snippets likes parallel block in sequence diagram makes life easier - Instant Parsing Error indicator for locating syntax error √ Instant Preview - Auto Generated Preview when typing in editor - Zoom and Pan to move preview for checking diagram's detail - With Scroll wheel it can be easily zoom diagram on macOS √ Integrated Extensions - Thumbnail support, every .mmd file will has its own thumbnail when saving file - QuickLook Preview extension helps you preview mermaid document in Files app on iPhone or iPad and Finder on macOS √ Sharing - Save diagram document as its source with .mmd extension - Export diagram to PNG image or SVG file with one click For mermaid-js grammar, please visit https://mermaid-js.github.io/mermaid/ for documentation.

About

do over

This tool allows for real-time text manipulation and template merging. Easily substitute values and placeholders to see how your merged content will appear instantly. It supports multi-step substitutions for complex text generation needs.

Highlights
  • Real-time template text changes
  • Customizable placeholder usage
  • Preview merged results
  • Multi-step substitutions
  • List of values input
  • Template input
Read full description

- Want to quickly and easily change the values and template text and see the results in realtime? do over can do that. - Want to use a different placeholder in the template? do over can do that. - Want to see how the merged results will look using different joins? do over can do that. - Want to be successful in life? do over, unfortunately, cannot do that. Provide a list of values (apple banana coconut … zucchini, for example) along with a template to use (such as ?i. ?), and do over generates merged output: 1. apple 2. banana 3. coconut … 26. zucchini do over can do multi-step substitutions as well.

Screenshots

MermaidEditor3 screens
do over4 screens

Verdict

The call

The clearest difference is rating: do over at 5.0 against MermaidEditor's 2.3. MermaidEditor's advantage is ratings volume (10 vs 1) and chart position (#108 vs unranked). On update cadence, ads, in-app purchases and monetization model 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

MermaidEditor costs $3.99 and do over $5.00 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

do over holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: MermaidEditor has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

MermaidEditor ships an update every 3 weeks, do over fortnightly. Both last shipped on October 30, 2026.

Scorecard5 real differences · 6 level
MermaidEditor versus do over: the parameters behind the verdict, then further details
ParameterMermaidEditordo over
Price$3.99 — better$5.00
Rating2.3 (10 ratings)5.0 (1 ratings) — better
Positive reviews13.8% of reviews—
Number of ratings10 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#108 — better—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, Mac
Requires iOS14.0 — better16.0
Further details — not scored
Size125 MB1 MB
Age rating4+4+
Developer基伟 徐Richard Koopmann

Customer experience

MermaidEditor

All ratings10 ratings
Positive30.0%
Neutral0.0%
Negative70.0%
Written reviews29 reviews
Positive13.8%
Neutral13.8%
Negative72.4%

do over

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MermaidEditor

No in-app purchases

None

do over

No in-app purchases

Questions

Is MermaidEditor free?
MermaidEditor costs $3.99, with no in-app purchases.
Is do over free?
do over costs $5.00, with no in-app purchases.
Which has better reviews, MermaidEditor or do over?
do over is rated higher. MermaidEditor averages 2.3 out of 5 from 10 ratings, while do over averages 5.0 from 1 ratings.
Do MermaidEditor or do over have ads?
Neither MermaidEditor nor do over shows ads.
Which is updated more often, MermaidEditor or do over?
MermaidEditor ships an update every 3 weeks, and do over fortnightly. Most recently, MermaidEditor was updated on October 30, 2026 and do over on October 30, 2026.

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