Comparison

PostgreSQL Client vs MarkChart

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

Head to head
About

PostgreSQL Client

Access and manage your PostgreSQL databases directly from your iOS device. This app offers a clean interface for exploring, querying, and modifying data, with advanced features like AI-assisted query composition and ER diagrams. It supports secure connections and various data import/export options.

Highlights
  • Secure TLS/SSH connections
  • AI-assisted query composition
  • ER Diagram Viewer
  • Advanced data grid for editing
  • Data import/export
  • Database object exploration
  • Server status monitoring
Features
Read full description

DB Compass for PostgreSQL allows you to access your PostgreSQL database directly and without any server setup. You can manage your data with a clean and simple iOS user interface. FEATURES: • Connection over TLS encryption and/or SSH tunnel • Database authentication supported: plain, MD5, SASL (SCRAM-SHA-256 and SCRAM-SHA-256-PLUS) and OAuth (PostgreSQL 18+) • SSH authentication support Secure Enclave Key and U2F/FIDO NFC Key • Assisted table creation and alter structure • Explore, filter, sort, and quick search table data • Query script with A.I. assisted composition and plan analysis • Database objects (tables, views, procedures, etc.) • Database statistics, sessions manager, server status graphs • ER Diagram Viewer • Advanced data grid for browse, edit, conditional formatting • Blob field preview, import and export • Job Activity Monitor • User list and Privileges • Import and Export in multiple formats • iCloud Sync for SQL and JS scripts • SQL plan analysis • Execute queries with Shortcuts App • Charts & Widgets OpenAI, Gemini and Claude integration requires api key and is only available in allowed regions. Ollama and LM Studio integration requires your server to connect. Tested on PostgreSQL 9.5 to 18. -- This is a Premium app and some features may require an in-app lifetime unlock -- For feedback or suggestions contact info@dbcompass.net

About

MarkChart

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

Highlights
  • Mermaid diagram editing
  • Real-time preview
  • Built-in templates
  • Automatic updates
  • Export to PDF, PNG, SVG
  • Syntax highlighting
  • Dark Mode support
Features
Read full description

Create beautiful Mermaid diagrams at the speed of thought. MarkChart gives you a focused editor, live preview, visual canvas, built-in templates, and polished exports in a native iPhone and iPad app. Mermaid is a Markdown-inspired syntax for defining diagrams with text. Use MarkChart to create flowcharts, sequence diagrams, state diagrams, class diagrams, entity relationship diagrams, Gantt charts, timelines, mind maps, Venn diagrams, pie charts, requirement diagrams, Git graphs, user journeys, and more. Start with a template, edit the Mermaid source with syntax highlighting, refine your diagram visually on the interactive canvas, then share it as PDF, PNG, or SVG. CREATE BEAUTIFUL DIAGRAMS Turn Mermaid text into polished diagrams in a focused iPhone and iPad app. EDIT MERMAID DIAGRAMS Create and edit your Mermaid diagrams directly in MarkChart. THEMES AND SYNTAX HIGHLIGHTING Choose polished themes and understand your diagram source with syntax highlighting. VISUAL EDITING Edit diagrams visually with the interactive canvas. TEMPLATES Instantly create sequence diagrams, state diagrams, flowcharts and more. DIAGRAM TYPES Create flowcharts, sequence diagrams, state diagrams, Venn diagrams, mind maps, timelines, Gantt charts, Git graphs, class diagrams, entity relationship diagrams, user journeys, pie charts, Sankey diagrams, XY charts, and more. QUICK LOOK Preview your .mmd and .mermaid files right from the Files app. EXPORT Easily export your diagrams to PDF, PNG, and SVG formats. SHORTCUTS Create automations with the Shortcuts app. FITS RIGHT AT HOME MarkChart is optimized for iOS and iPadOS, with Dark Mode support. MARKCHART PRO MarkChart Pro is an optional one-time universal purchase for iOS, iPadOS, and macOS. Privacy Policy: https://markchart.app/privacypolicy/ Terms of use: https://markchart.app/terms/ If you have any questions or ideas, please reach out at support@markchart.app

Screenshots

PostgreSQL Client4 screens
MarkChart4 screens

Verdict

The call

The clearest difference is rating: PostgreSQL Client at 4.6 against MarkChart's 4.2. PostgreSQL Client also leads on ratings volume (153 vs 13) and iOS requirement (16.4 vs 18.2). On price, review sentiment, update cadence and ads 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. PostgreSQL Client sells 1 one-off in-app purchase and MarkChart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PostgreSQL Client holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: PostgreSQL Client has 153 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 74% of PostgreSQL Client's written reviews are positive against 72% of MarkChart's.

UpkeepUpdate frequency

PostgreSQL Client ships an update every 4 weeks, MarkChart fortnightly. Both last shipped on September 23, 2026.

Scorecard3 real differences · 7 level
PostgreSQL Client versus MarkChart: the parameters behind the verdict, then further details
ParameterPostgreSQL ClientMarkChart
PriceFreeFree
Rating4.6 (153 ratings) — better4.2 (13 ratings)
Positive reviews74.1% of reviews — better72.3% of reviews
Number of ratings153 — better13
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.4 — better18.2
Further details — not scored
Size124 MB46 MB
Age rating4+4+
DeveloperFilippo MaguoloAlexandre Colucci

Customer experience

PostgreSQL Client

All ratings153 ratings
Positive89.5%
Neutral3.3%
Negative7.2%
Written reviews54 reviews
Positive74.1%
Neutral3.7%
Negative22.2%

MarkChart

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews65 reviews
Positive72.3%
Neutral6.2%
Negative21.5%

Bugs and requests

PostgreSQL Client

Reported bugs

13 issues
  • Chart creation resets fields
  • Connection errors after no changes
  • No access to tables/functions
  • Connection lost immediately after switching apps
  • Reconnecting process hangs up
Show 8 more
  • SSH tunnel doesn't work
  • Time fields incorrect (fixed, but new bug introduced)
  • Cannot add new record with date/time field
  • App crashes frequently on large tables
  • SASL authentication not working (08P01)
  • Free version unstable, crashes often
  • Cannot connect to existing database after several months
  • Face ID verification spins endlessly

Requested features

17 requests
  • Add Generate Random button for UUID
  • Allow installation on M1/M3 Mac
  • Add SSH tunnels with key authentication
  • Show HINT in error handling
  • Editor of procedure must resize to full screen
Show 12 more
  • Calling procedure in background
  • Opportunity to show Postgres log
  • Debug of procedure
  • Add column in index of materialized view
  • Change SQL of materialized view
  • Call function with SQL: Select func(params...)
  • Params of func or procedure did not save
  • Cannot edit table with primary key
  • Delete multiple records with multi-select
  • Set minimum width for grid columns
  • Dark mode option
  • Ability to install on M1 Mac

MarkChart

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

PostgreSQL Client

One-time1
  • PRO FEATURES$9.99
1 purchases

MarkChart

One-time1
  • MarkChart Pro$12.99

Questions

Is PostgreSQL Client free?
PostgreSQL Client is free to download, with in-app purchases available.
Is MarkChart free?
MarkChart is free to download, with in-app purchases available.
Which has better reviews, PostgreSQL Client or MarkChart?
PostgreSQL Client is rated higher. PostgreSQL Client averages 4.6 out of 5 from 153 ratings, while MarkChart averages 4.2 from 13 ratings.
Do PostgreSQL Client or MarkChart have ads?
Neither PostgreSQL Client nor MarkChart shows ads.
Which is updated more often, PostgreSQL Client or MarkChart?
PostgreSQL Client ships an update every 4 weeks, and MarkChart fortnightly. Most recently, PostgreSQL Client was updated on September 23, 2026 and MarkChart on September 23, 2026.

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