Comparison

Burrow Tunnel vs AcoustiCalc

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

Head to head
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.

About

AcoustiCalc

Features
Read full description

AcoustiCalc is the ultimate toolkit designed for architects, engineering firms, and acousticians. Instantly calculate the reverberation time (RT60) via Sabine's Formula or estimate the sound insulation of walls using the Mass Law. Premium B2B Features: - Predictive acoustic modeling with interactive graphs. - Expert local database: 300+ materials with Alpha absorption coefficients (125Hz-4kHz) certified ISO 354. - White Label PDF Report Generator for direct client delivery. - Integrated Live SPL Meter. - Metric and Imperial system support. 100% Offline. Zero Cloud. Compliance and industrial secrecy guaranteed. Legal Disclaimer: Simulations are predictive and do not replace certified in-situ measurements.

Screenshots

Burrow Tunnel4 screens
AcoustiCalc4 screens

Verdict

The call

The clearest difference is price: Burrow Tunnel at Free against AcoustiCalc's $3.99. AcoustiCalc's advantage is in-app purchases (none vs 1) and update cadence (daily vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Burrow Tunnel is free to download; AcoustiCalc costs $3.99 up front. Burrow Tunnel sells 1 one-off in-app purchase. AcoustiCalc asks for nothing beyond the download.

UpkeepUpdate frequency

Burrow Tunnel ships an update every 2 weeks, AcoustiCalc daily. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

Scorecard3 real differences Β· 3 level
Burrow Tunnel versus AcoustiCalc: the parameters behind the verdict, then further details
ParameterBurrow TunnelAcoustiCalc
PriceFree β€” better$3.99
Update frequencyEvery 2 weeksDaily β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017
Further details β€” not scored
Size45 MB43 MB
Age rating9+4+
Developerι‘« 姜TRIMECH Dhaker

In-app purchases

1 purchases

Burrow Tunnel

One-time1
  • Burrow Pro$14.99
None

AcoustiCalc

No in-app purchases

Questions

Is Burrow Tunnel free?
Burrow Tunnel is free to download, with in-app purchases available.
Is AcoustiCalc free?
AcoustiCalc costs $3.99, with no in-app purchases.
Do Burrow Tunnel or AcoustiCalc have ads?
Neither Burrow Tunnel nor AcoustiCalc shows ads.
Which is updated more often, Burrow Tunnel or AcoustiCalc?
Burrow Tunnel ships an update every 2 weeks, and AcoustiCalc daily. Most recently, Burrow Tunnel was updated on October 3, 2026 and AcoustiCalc on October 24, 2026.

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