Comparison

Axiomeer vs Burrow Tunnel

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

Head to head
About

Axiomeer

Features
Read full description

Calcula is a powerful scientific calculator that combines classic RPN stack workflow with a full Algebraic (ALG) mode in one app. Designed for advanced users, engineers, students, and technical professionals, Calcula lets you choose the input style you prefer, then move seamlessly between both worlds. Two calculation modes, one engine - RPN mode for fast stack-based operation - ALG mode with scientific keypad and direct expression input - Instant switch between modes from the main interface Advanced algebraic input - Scientific ALG keypad with prefix actions (`f/g`) - Keyboard or keypad entry - Live rendered math preview with pan and pinch zoom - Build, inspect, and refine long expressions comfortably Rich math objects - Real and complex numbers (Cartesian/Polar behavior) - Fractions, vectors, and matrices - Matrix/vector operations including products, transpose, determinant, inverse, dot and cross products Units, constants, and formatting - Integrated units workflow in expressions - Access to constants database in ALG flow - Shared global number formatting between RPN and ALG Functions and persistence - Define and edit functions from both RPN and ALG workflows - Coherent shared function database - Draft and editing improvements for smoother continuity Statistics and scientific tools - Shared statistics memory across RPN and ALG - Statistical operations and previews integrated into ALG workflow - Extended scientific function coverage with ongoing expansion Calcula is built for real technical work: precision, depth, and flexible interaction without sacrificing speed.

About

Burrow Tunnel

Features
Read full description

Burrow is a frp client built for developers and homelab tinkerers. It lets you securely connect from your phone to your own Mac, Linux, NAS, or GPU machine at home, and keep doing the things you would normally do in front of a computer. [Why Burrow] The local AI agent era is here. You might be running Claude Code, Cursor agents, local LLMs, Stable Diffusion, or other self-hosted services on a workstation, Mac mini, or NAS at home. When you are out, you want to use your phone to check progress, tweak configs, transfer files, run maintenance scripts. Exposing ports directly to the public internet is dangerous. Commercial remote-desktop tools route your traffic through their servers. Burrow uses frp's stcp visitor mode: - End-to-end encrypted; the key stays only between you and your devices - No public ports exposed on your home machines - All traffic flows only through your own frps server, with no third-party relay - We cannot, and never will, see any of your data [Three access modes] 1. Shell (PTY terminal) A full SSH terminal with support for vim, htop, tmux, color output, and ANSI escapes. Password and public-key authentication. Built-in favorites and runbooks: pin commands like "restart service", "tail logs", or "kick off training run", and execute them in one tap. 2. SFTP (file browser) Browse the remote filesystem by directory. Upload, download, rename, delete. Useful for pulling trained model weights, generated images, or logs back to your phone. 3. HTTP (in-app browser) A built-in WebView for accessing intranet web services: Jupyter, Open WebUI, Home Assistant, Grafana, the frps dashboard, your router admin page, self-hosted photo libraries, and so on. Self-signed certificate trust supported. [Who Burrow is for] - People running AI agents, local LLMs, or self-hosted services at home who need safe remote access - Developers who want to do server ops, check logs, or run scripts from their phone - Homelab enthusiasts and self-hosters who already run their own frps and at least one Linux or macOS machine [Who it is not for] - Users who want zero-config, install-and-go (you need to understand frp configuration) - Anyone needing graphical remote desktop (Burrow only does command line, files, and web) - Anyone expecting the app to run continuously in the background (limited by iOS foreground model) [What you need before starting] 1. A frps server you have deployed (a VPS, or another machine on your network) 2. A frpc daemon already running on the home machine you want to reach, with an stcp-type proxy configured 3. The same sk (shared key) on both sides 4. SSH enabled on the remote if you want shell, or a web service running if you want HTTP The "User Guide" section inside the app has a full getting-started walkthrough with example configs. [Privacy] Burrow does not collect any user data. All connection configurations (addresses, passwords, keys) are stored only on your device, in the iOS Keychain. No accounts. No login. No analytics. No third-party SDKs. [Feedback] This is the work of a solo developer. There is a feedback channel at the bottom of the in-app User Guide. If something does not work for you, please tell me.

Screenshots

Axiomeer4 screens
Burrow Tunnel4 screens

Verdict

The call

The clearest difference is in-app purchases: Axiomeer at none against Burrow Tunnel's 1. Axiomeer also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Burrow Tunnel sells 1 one-off in-app purchase. Axiomeer asks for nothing beyond the download.

UpkeepUpdate frequency

Axiomeer ships an update every 2 days, Burrow Tunnel every 2 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard2 real differences ยท 4 level
Axiomeer versus Burrow Tunnel: the parameters behind the verdict, then further details
ParameterAxiomeerBurrow Tunnel
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 2 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details โ€” not scored
Size7 MB45 MB
Age rating4+9+
DeveloperJESUS MARIO SUBIAS DOMINGO้‘ซ ๅงœ

In-app purchases

None

Axiomeer

No in-app purchases

1 purchases

Burrow Tunnel

One-time1
  • Burrow Pro$14.99

Questions

Is Axiomeer free?
Axiomeer is free to download, with no in-app purchases.
Is Burrow Tunnel free?
Burrow Tunnel is free to download, with in-app purchases available.
Do Axiomeer or Burrow Tunnel have ads?
Neither Axiomeer nor Burrow Tunnel shows ads.
Which is updated more often, Axiomeer or Burrow Tunnel?
Axiomeer ships an update every 2 days, and Burrow Tunnel every 2 weeks. Most recently, Axiomeer was updated on November 9, 2026 and Burrow Tunnel on November 5, 2026.

Other comparisons