Comparison

PostgreSQL Client vs Q

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

Q

Features
Read full description

Q-Bridge is a quantum job workbench for iPhone, iPad and Mac. It is built for developers and researchers who write quantum circuits, submit them, and want to see what happens next without switching between vendor consoles. WHAT YOU CAN DO • Submit jobs — Pick a backend and submit a job from the Dashboard, or write and paste OpenQASM in the built-in editor (Pro). • Follow every job in real time — Each job moves from queued to running to completed on screen as it happens. Your job list updates the moment a status changes, with no manual refresh. • Emergency stop — One tap cancels all of your active jobs, and the app shows which jobs, if any, could not be stopped. • Open real results — Finished simulator jobs return measurement counts you can inspect right away, together with the job's history and details. • Cloud simulator — Circuits run on our cloud simulator (not on your device). The qubit limit depends on your plan, and the simulator is noiseless. • Compare backends from seven providers (Pro) — Browse backends from IBM Quantum, IonQ, Rigetti, Quantinuum, PASQAL, QuEra and Amazon Braket side by side in one catalog. • Bring your own provider credentials (Pro) — Provider API keys you add are stored in the Keychain on your device. No provider key is bundled with the app, and you never need one to use the simulator. They are sent only with requests that need them — the provider catalog or a job you submit to a provider. • Backend suggestions on your device (Pro) — On supported devices, Bridge Advisor suggests a backend for your circuit using Apple's on-device model, so your circuit is not sent anywhere to get a suggestion. • Bloch sphere — Visualize single-qubit states interactively, on every plan. • Easy start — A short intro you can skip or replay from Settings, and a guest mode to look around before you create an account. BUILT FOR APPLE PLATFORMS Native SwiftUI on iPhone, iPad and Mac, with Liquid Glass design. Universal Purchase: one subscription covers iPhone, iPad and Mac. Available in English, Korean, Japanese, Simplified Chinese, Spanish, French and German. PRIVACY No ads and no third-party tracking. The camera is used only when you choose to scan a QR code to pair a gateway. Provider keys stay in the Keychain. Creating an account requires you to be 13 or older. PLANS • Free — Cloud simulator jobs with live tracking, emergency stop and the Bloch sphere. • Pro — $24.99/month or $159.99/year. Adds the OpenQASM editor, the seven-provider catalog with your own credentials, Bridge Advisor and more tools, plus a higher simulator limit. • Team — $69.99/month or $549.99/year. Everything in Pro, plus the Team workspace and Team tools. • Enterprise — Contact sales. Not sold in the app. You can subscribe without creating an account. Prices shown are in US dollars; your local App Store price may differ. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Payment is charged to your Apple Account. Quantum hardware access through a provider is subject to that provider's own account, terms and pricing. TRADEMARK NOTICE IBM Quantum, IonQ, Rigetti, Quantinuum, PASQAL, QuEra, Amazon Braket and AWS are trademarks of their respective owners. Q-Bridge is an independent app and is not affiliated with, endorsed by, or sponsored by these companies. The names are used only to identify the providers a backend belongs to. Made by SwiftQuantum Technologies, LLC. Terms of Use: https://swiftquantum.tech/terms/ · Privacy Policy: https://swiftquantum.tech/privacy/

Screenshots

PostgreSQL Client4 screens
Q4 screens

Verdict

The call

The clearest difference is iOS requirement: PostgreSQL Client at 16.4 against Q's 26.0. On price, update cadence, ads and in-app purchases 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 Q sells 4 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 9 level
PostgreSQL Client versus Q: the parameters behind the verdict, then further details
ParameterPostgreSQL ClientQ
PriceFreeFree
Rating4.6 (154 ratings) — better—
Positive reviews74.1% of reviews—
Number of ratings154 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.4 — better26.0
Further details — not scored
Size124 MB17 MB
Age rating4+4+
DeveloperFilippo MaguoloEUNMIN PARK

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

Q

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

PostgreSQL Client

One-time1
  • PRO FEATURES$9.99
4 purchases

Q

Subscriptions4
  • Q-Bridge Pro Monthly$24.991 Month
  • Q-Bridge Team Monthly$69.991 Month
  • Q-Bridge Pro Yearly$159.991 Year
Show 1 more
  • Q-Bridge Team Yearly$549.991 Year

Questions

Is PostgreSQL Client free?
PostgreSQL Client is free to download, with in-app purchases available.
Is Q free?
Q is free to download, with in-app purchases available.
Do PostgreSQL Client or Q have ads?
Neither PostgreSQL Client nor Q shows ads.
Which is updated more often, PostgreSQL Client or Q?
PostgreSQL Client ships an update every 3 weeks, and Q every 3 weeks. Most recently, PostgreSQL Client was updated on October 11, 2026 and Q on October 8, 2026.

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