Comparison

Liquid Apollo vs First Days

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

Head to head
About

Liquid Apollo

Access a wide range of AI language models, both locally on your device and through cloud APIs. This app allows you to chat with open-source models, connect to your own hosted LLMs, or utilize services like OpenRouter for broad model access.

Highlights
  • Local LLM support
  • OpenRouter integration
  • Custom backend connections
  • Private AI chat
  • Access to open-source models
  • Connect to hosted LLMs
Features
Read full description

Chat with private, local AI models, connect to every open source AI, or your own locally-hosted private LLMs. Apollo is your own customizable client for accessing language models from all around the web. Local model support (powered by LEAP, a Liquid AI product): run smaller LLMs privately and securely on-device. OpenRouter support: bring an OpenRouter API key to chat with every model on the web. Just sign in by creating an account over at OpenRouter and paste it in to Apollo to access nearly every model, from open source models like Meta Llama 3, to closed source models like OpenAI’s ChatGPT-4. Custom Backend support: want ChatGPT at home? Run an LLM on your computer with tools like LM Studio or Ollama and connect to it with Apollo to host your own private ChatGPT-like mobile app for your family.

About

First Days

Features
Read full description

First Days is a simple, private newborn tracker made by a new parent, for new parents.
 Being a new parent is its own challenge, the last thing you should need to worry about is a pen-and-paper spreadsheet to track the last time they ate and for how long, when they made a dirty diaper… 
In First Days, with just a tap, you can track all the essentials; - Feeding - Diapers - Sleep And for those times when baby is being extra spicy and it’s “all hands on deck”, you can use voice commands with Siri to add events or start a session. 
Reviewing your baby’s data in the app couldn’t be simpler, with clean, interactive charts. Privacy is a fundamental human right, and First Days was built with this principle front and center. - Your data syncs to your other devices automatically through your iCloud account - No signing up for yet-another online service; your iCloud *is* your account - No advertisements, in-app usage tracking, or any other invasive nonsense - Your data is YOURS; export all your baby’s data any time to a simple CSV format In addition to everything above, First Days comes loaded with great features. To name a few: - Customizable Feeding notifications - Daily and Weekly Smart Charts - Various accessibility features - Dark/Light mode - App Icon customization - Left-handed mode - Shortcuts integration To support ongoing development, First Days offers two subscription tiers that unlock even more. For the price of a few cups of coffee a year, the Premium subscription unlocks the following: - Caregiver Sharing! Securely share your baby’s profile with other caregivers, so they can view and log events for your baby as well. Share with a simple link, and revoke access any time. - 5 baby profiles (up from 2) - Smart Daily Goals that grow with your baby, based on recommendations from the American Academy of Pediatrics (aap.org) - More than 30 days of history visualized in-app (all data remains exportable with or without a subscription) - Trends and Insights, to help you see how your baby’s metrics are changing over time at a glance A Pro subscription unlocks all of the above, plus unlimited baby profiles. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Liquid Apollo4 screens
First Days4 screens

Verdict

The call

The clearest difference is in-app purchases: Liquid Apollo at none against First Days's 4. Liquid Apollo also leads on iOS requirement (18.0 vs 26.2). On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. First Days sells 4 in-app purchases, starting at $0.99 per month. Liquid Apollo asks for nothing beyond the download.

UpkeepUpdate frequency

Liquid Apollo ships an update every 10 days, First Days every 9 days. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Liquid Apollo versus First Days: the parameters behind the verdict, then further details
ParameterLiquid ApolloFirst Days
PriceFreeFree
Rating4.5 (645 ratings) — better—
Positive reviews68.5% of reviews—
Number of ratings645 — better—
Update frequencyEvery 10 daysEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, Apple Watch
Requires iOS18.0 — better26.2
Further details — not scored
Size151 MB45 MB
Age rating12+4+
DeveloperLiquid AI, Inc.Gabrielle Miseroy

Bugs and requests

Liquid Apollo

Reported bugs

6 issues
  • Unable to download Liquid Models
  • Deleted locally installed models
  • OpenRouter support crashes the app
  • Voice list doesn't load all available voices
  • Backspace lag leading to unintended text deletion
Show 1 more
  • Inconsistent behavior when using code blocks

Requested features

10 requests
  • Add support for more open-source models (e.g. Gemma 3)
  • Implement image generation and upload functionality
  • Allow scheduling of asynchronous tasks
  • Integrate with Hugging Face model repository
  • Provide built-in prompt library
Show 5 more
  • Add MCP (Multimodal Conversation Protocol) support
  • Enable direct OpenAI API integration
  • Improve voice chat functionality
  • Add option to delete all chat history
  • Implement search and filtering for chat history

First Days

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Liquid Apollo

No in-app purchases

4 purchases

First Days

Subscriptions4
  • First Days Premium (Monthly)$0.991 Month
  • First Days Premium$9.991 Year
  • First Days Pro (Monthly)$9.991 Month
Show 1 more
  • First Days Pro$99.991 Year

Questions

Is Liquid Apollo free?
Liquid Apollo is free to download, with no in-app purchases.
Is First Days free?
First Days is free to download, with in-app purchases available.
Do Liquid Apollo or First Days have ads?
Neither Liquid Apollo nor First Days shows ads.
Which is updated more often, Liquid Apollo or First Days?
Liquid Apollo ships an update every 10 days, and First Days every 9 days. Most recently, Liquid Apollo was updated on September 28, 2026 and First Days on September 20, 2026.

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