Dev Calculator vs Nebula Mesh
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dev Calculator
A free, ad-free developer calculator focused on bitwise operations and base conversions. It supports unsigned integers up to 64 bits and includes features like shifting, rotating, and casting.
- Bitwise operations (AND, NOT, OR, XOR)
- Shifting and rotating
- Casting support
- 64-bit unsigned integer support
- Base conversions
- No ads
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Full featured, completely free, developer calculator with no ads. Designed primarily for bit operations and quick conversion of bases. In-app purchases don't affect features and are only meant as a way to donate to the developer for his effort. Supports bitwise operations like AND, NOT, OR, XOR. Also supports shifting, rotating and casting. This calculator supports unsigned integers up to 64 bits.
Nebula Mesh
This client facilitates connection to a private, open-source network. It guides users through setting up a server and connecting various devices securely from anywhere in the world. Supports advanced configurations like DNS over HTTPS.
- Connect to Nebula network
- Guided server setup
- Remote device access
- On-demand connection rules
- DNS over HTTPS/TLS
- UDP punch configuration
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This is an iOS client to help you connect to a Nebula network (a popular open-sourced Github project with name slackhq/nebula). To use this app, you will need to create your own Nebula server (lighthouse) on a cloud instance (AWS, Azure, Google Compute Platform, DigitalOcean, etc.) or a router (OpenWrt) or a computer. Also supports on-demand rules for specific domains to automatically start the connection. This app guides you on every single step on setting up a lighthouse server, connecting your iOS device to the Nebula network, and setting up Nebula on other types of devices. The guides cover from editing configuration file, downloading bundle, generating certificate, setting up unsecured routes and more. Nebula is a tool to connect machines across different networks. For example, you can use it to connect to your cloud instances, your home NAS, office networks, home printers and many other types of devices (or even an entire private subnet) securely and remotely anywhere in the world. It is a meshed network which can connect any devices around the world (even behind NAT, with the help of at least one lighthouse server). This app offers setup guides not only for iOS devices, but also the lighthouse server, on router OpenWrt, and Linux systems. It can be easily used by both beginners and experts who are already using the Nebula network. For professional users, you can also set a DNS over HTTPS and DNS over TLS. Also, you can configure whether to use UDP punch.
Screenshots
Verdict
The clearest difference is update cadence: Dev Calculator at every 11 days against Nebula Mesh's every 2 months. Dev Calculator also leads on ratings volume (4 vs 1). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Dev Calculator against 5.0 for Nebula Mesh. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Dev Calculator ships an update every 11 days, Nebula Mesh every 2 months. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.
| Parameter | Dev Calculator | Nebula Mesh |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 11 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 0 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Lassen | HEX FOUNDRY LTD |
Customer experience
Dev Calculator
Nebula Mesh
In-app purchases
Dev Calculator
No in-app purchases
Nebula Mesh
No in-app purchases
Questions
Is Dev Calculator free?
Is Nebula Mesh free?
Which has better reviews, Dev Calculator or Nebula Mesh?
Do Dev Calculator or Nebula Mesh have ads?
Which is updated more often, Dev Calculator or Nebula Mesh?
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