Software Alternatives & Startups

Nomu VS https://open-gpt.app/

Compare Nomu VS https://open-gpt.app/ and see what are their differences

Nomu

The fasting timer where a caterpillar cocoons while you fast and becomes a butterfly when you finish. 16:8 to 72-hour fasts, live science phases, Apple Watch, 14 languages. Private by design.

Rating
0 reviews
Pricing
Paid Free trial $19.99 / Annually
https://open-gpt.app/

Create ChatGPT Application in seconds

Rating
0 reviews
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Base details

Website, pricing, platforms and company facts side by side.

Nomu
https://open-gpt.app/
Website tappect.com open-gpt.app
Pricing
Paid Free trial $19.99 / Annually
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Platforms
iOS Android Apple Watch
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Company Startup from the United States · 1 - 9 employees · 2026 —
Listed in —

About Nomu and https://open-gpt.app/

In their own words, as submitted to SaaSHub.

Nomu
https://open-gpt.app/

I got tired of fasting apps that are 90% upsell and require an account to run a timer. So I built Nomu (Flutter, iOS + Android + watchOS). The core idea: fasting phases (fat burning -> ketosis -> autophagy) are invisible, so people quit mid-fast. Nomu maps them onto a mascot that visibly...

Read more about Nomu

No description of https://open-gpt.app/ yet.

Features and specs

What each product offers, as listed by its team.

Nomu 5 features
https://open-gpt.app/ 5 features
  • Simple note-taking interface
    Nomu offers a clean, minimalistic design that makes it easy for users to quickly jot down notes, ideas, and reminders without a steep learning curve.
  • Cross-device syncing
    Notes created in Nomu can sync across multiple devices, allowing users to access their information whether they are on mobile, tablet, or desktop.
  • Lightweight and fast performance
    The app is designed to be lightweight, resulting in quick load times and smooth performance even on older or lower-spec devices.
  • Organizational tools
    Nomu provides tagging, folders, or categorization features that help users keep their notes structured and easy to retrieve later.
  • Affordable pricing model
    Compared to some competitors, Nomu offers a cost-effective pricing structure, making it accessible for individuals and small teams on a budget.
  • Accessible AI Chat Interface
    Provides a user-friendly web-based interface for interacting with GPT-based AI models without needing to set up API access or coding knowledge.
  • No Installation Required
    Being a web application, it can be used directly from a browser without downloading or installing any software.
  • Potentially Free or Low-Cost Access
    Many GPT wrapper sites like this offer free tiers or lower-cost access compared to official API pricing, making AI chat more accessible to casual users.
  • Quick Setup
    Users can typically start chatting almost immediately after visiting the site, with minimal account creation or configuration steps.
  • Cross-Platform Compatibility
    Since it runs in a browser, it can be accessed from various devices including desktops, tablets, and smartphones without platform-specific versions.

Possible disadvantages

  • Uncertain Reliability
    Third-party GPT wrapper websites often depend on underlying API access that can be unstable, rate-limited, or discontinued without notice, affecting consistent availability.
  • Data Privacy Concerns
    Using an unofficial third-party service to process conversations raises questions about how user data and conversation history are stored, used, or shared.
  • Limited Transparency
    It may be unclear which underlying AI model version is being used, how up-to-date it is, or what modifications have been made to the base model's behavior.
  • Potential Hidden Costs or Ads
    Free-to-use AI wrapper sites often monetize through ads, premium upsells, or data collection, which may not be clearly disclosed to users upfront.
  • Lack of Official Support
    Unlike official AI platforms, unofficial wrapper sites may lack dedicated customer support, regular updates, or accountability if issues arise.

Analysis

An editorial look at what each product does well and who it suits.

Nomu
https://open-gpt.app/

No analysis of Nomu yet.

Overall verdict

  • I don't have verified, up-to-date information about open-gpt.app, and I'm unable to browse the internet to check its current status, reputation, or legitimacy. I cannot confidently vouch for or against this specific product/service.

Why this product is good

  • I lack real-time access to verify this website's current content, reputation, or user reviews
  • Domain names and their associated services can change ownership and purpose over time
  • Without verification, I cannot confirm if this is a legitimate service, its features, or its safety
  • There are many similarly-named AI tools of varying quality and trustworthiness, making specific verification important

Recommended for

  • Before using this site, research current user reviews on trusted platforms
  • Check the site's SSL certificate, privacy policy, and terms of service
  • Look for verified information about the company or developers behind it
  • Consider well-established alternatives like ChatGPT (OpenAI), Claude (Anthropic), or Gemini (Google) if you need reliable AI assistance
  • Exercise caution with any site requesting payment or personal information without clear verification of legitimacy

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Nomu
https://open-gpt.app/
100% 100%
0% 0%
100% 100%
0% 0%
100% 100%
0% 0%
100% 100%
0% 0%

Questions & Answers

As answered by people managing Nomu and https://open-gpt.app/.

Which are the primary technologies used for building your product?

Nomu's answer

Flutter App for ios and Android

What makes your product unique?

Nomu's answer

The fasting timer that makes the invisible part visible

Most fasting apps are a number counting up. Nomu is a caterpillar that spins a cocoon as your body enters fat burning and emerges as a butterfly when you finish. It sounds silly. It is the reason people stop quitting at hour 13.

What's the story behind your product?

Nomu's answer

I got tired of fasting apps that are 90% upsell and require an account to run a timer. So I built Nomu (Flutter, iOS + Android + watchOS).

The core idea: fasting phases (fat burning -> ketosis -> autophagy) are invisible, so people quit mid-fast. Nomu maps them onto a mascot that visibly transforms - caterpillar to cocoon to butterfly - and a streak system that evolves its wings over 180 days. A tamagotchi-style loop beats charts for habit retention.

Technical bits: - Local-first: SQLite on device, no accounts, no backend for user data. Export is CSV/JSON. - Flutter + native watchOS app, Home/Lock Screen widgets, Control Center controls via App Intents - Apple Health sync, live phase notifications, auto eating-window countdown - 14 locales, paired haptics + sound design for every interaction

Business model experiment: free-for-life for anyone who installs by September 11 (enforced by a date constant in the app, no server), then a hard paywall for new users only. Early users are grandfathered forever - they're the word-of-mouth engine.

Nomu is built by Tappect, the indie studio behind Nutrify, the AI calorie tracker used to log meals with a photo - see https://www.nutrifytracker.com. Both apps share the same philosophy: private by design, delightful to use daily. Nutrify ships the same local-first pattern with an on-device-first pipeline for food logging.

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