Comparison

Spike AI vs A1 ai

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

Head to head
About

Spike AI

This AI chat application offers flexible model execution, allowing you to use cloud-based AI, your own on-device models, or connect to a remote server. It supports encrypted conversation syncing across devices and project organization for managing your AI interactions.

Highlights
  • Cloud-based AI chat
  • On-device model execution
  • Connect to OpenAI-compatible servers
  • Sync encrypted conversations
  • Organize chats in projects
  • Choose tools for tasks
Features
Read full description

Meet Spike Studio: AI chat on your iPhone, with a choice of where your model runs. GET STARTED WITH SPIKE CLOUD Create a free account in the app, verify your email, and start chatting. You do not need a computer or your own server. Free usage limits apply. This version offers no in-app subscriptions or purchases. USE YOUR OWN MODELS Connect an OpenAI-compatible server, including LM Studio, or download an on-device model on a supported iPhone. These options do not require a Spike account. Model downloads need available storage, and on-device performance depends on your iPhone and the selected model. CONNECT YOUR COMPUTER Use an account-linked Runtime from Spike Studio on your computer, and follow Agent work from your iPhone. Computer and Runtime setup are required for these optional features. KEEP YOUR CONVERSATIONS TOGETHER Sign in with the same Spike account across devices to sync encrypted conversations. Organize chats in projects and choose tools for the task at hand. Tools that use iPhone features request the relevant permissions. Cloud chats are processed by Spike Cloud; on-device models run on your iPhone; a connected server processes the chats you send to it. Choose the option that fits your needs.

About

A1 ai

This AI application offers on-device processing and decentralized network options, ensuring your data remains private and is never sold. It allows you to ask anything without contributing to large data centers, making it an environmentally conscious choice.

Highlights
  • On-device AI model
  • Decentralized network compute
  • No data centers used
  • Privacy-focused
  • Subscription for Pro features
Features
Read full description

A1 - AI without the data centers. Every other AI app ships your questions to a warehouse the size of a town — one that drinks water by the reservoir and burns power by the city — then rents the answer back to you by the month. A1 doesn't. A1 runs two ways, and neither needs a data center: • On your phone. A small, capable model runs fully on your device. Nothing is uploaded. No account. • Across the mesh. Or borrow a slice of compute from a decentralized network of real people's devices — no headquarters, no landlord. What you type never becomes someone's training pile. What you ask is never sold back to you. And not a single drop of water is boiled off to answer “hey.” Common sense about thinking machines: a model is just math, and the chip in your pocket is enough to think with. Ask anything. Run it on us, not on the planet. — — — A1 Pro is an auto-renewable subscription. • Price: $9.99 per week (US), with a 7-day free trial for new subscribers. • Payment is charged to your Apple Account at confirmation of purchase. • The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours prior to the end of the current period. • Manage or cancel anytime in your App Store account settings after purchase. • Any unused portion of a free trial is forfeited when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://a1ai-sandy.vercel.app/privacy

Screenshots

Spike AI4 screens
A1 ai4 screens

Verdict

The call

The clearest difference is in-app purchases: Spike AI at none against A1 ai's 1. Spike AI also leads on ratings volume (11 vs 2). On price, rating, update cadence and ads 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. A1 ai sells 1 in-app purchase, starting at $9.99 per 7 days. Spike AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.1 for Spike AI against 3.0 for A1 ai. That said, the two scores are not equally well evidenced: Spike AI has 11 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Spike AI ships an update every 8 days, A1 ai weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Spike AI versus A1 ai: the parameters behind the verdict, then further details
ParameterSpike AIA1 ai
PriceFreeFree
Rating3.1 (11 ratings) — better3.0 (2 ratings)
Positive reviews71.4% of reviews—
Number of ratings11 — better2
Update frequencyEvery 8 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size121 MB6 MB
Age rating4+4+
DeveloperJan StellmannWhat If Projects, Inc.

In-app purchases

None

Spike AI

No in-app purchases

1 purchases

A1 ai

Subscriptions1
  • A1 Pro7 Days trial$9.997 Days

Questions

Is Spike AI free?
Spike AI is free to download, with no in-app purchases.
Is A1 ai free?
A1 ai is free to download, with in-app purchases available.
Which has better reviews, Spike AI or A1 ai?
Spike AI is rated higher. Spike AI averages 3.1 out of 5 from 11 ratings, while A1 ai averages 3.0 from 2 ratings.
Do Spike AI or A1 ai have ads?
Neither Spike AI nor A1 ai shows ads.
Which is updated more often, Spike AI or A1 ai?
Spike AI ships an update every 8 days, and A1 ai weekly. Most recently, Spike AI was updated on November 5, 2026 and A1 ai on October 31, 2026.

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