
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Folderly
Email on Acid
Litmus
Mailtrap
MailGenius
250ok
ZeroBounce
G-Lock Apps is an interesting tool that might seem simple to some, but is quite essential to most online marketers.

Which is more popular?
Based on our record, GlockApps seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devfinancetools.com | glockapps.com |
| Pricing | ||
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
No description of GlockApps yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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How to solve inboxing issues with glockapps.com
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and GlockApps. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevFinanceTools since Aug 2026.
GlockApps - Get insights into your email deliverability, reputation, authentication, and DMARC compliance. Source: about 3 years ago
If you just want to get your issue resolved ASAP without the hassle go to https://glockapps.com/ and get their delivery consulting. Source: over 3 years ago
Use an app like GlockApps to see if emails are landing in inboxes. Or use Mail-tester.com again. Source: over 3 years ago
When comparing DevFinanceTools and GlockApps, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
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Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.
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Should you build an internal tool? Or just buy it?
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litmus tests and tracks your email campaigns, so you can always put your best design forward.
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