Comparison

esper vs SmartLoop Timer

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

Head to head
About

esper

This AI chat app allows you to run open-source language models completely offline on your device. You can also connect to premium models using your own API keys. It offers features like multimodal support, local knowledge bases, and branching conversations for a private and powerful AI experience.

Highlights
  • Run open-source models offline
  • Connect with your own API keys
  • Multimodal support for images and PDFs
  • Local RAG knowledge bases
  • Branching conversations
  • Customizable interface
  • iCloud sync (Pro)
Features
Read full description

esper - Offline & Private AI is your personal AI chat app—designed to keep your conversations private and powerful. Run open-source models completely offline on your iPhone. With esper - Offline & Private AI, you can choose to keep your data on your device. No tracking. Key Features of esper - Offline & Private AI: – Run Offline Download top open-source models like Qwen, Gemma, and DeepSeek directly to your phone—fully functional even without internet or WiFi. – Bring Your Own Key Prefer ChatGPT or Claude? Plug in your own API key and get instant access to premium models from their providers. Swap between models anytime, even within the same conversation. – Multimodal Support Chat with models that support vision for images, PDFs, and other files. – Local RAG knowledge bases Upload documents into organized collections that you can add to chats to provide extra context for models, all 100% private and offline. – Local Image Generation Run stable diffusion directly on your device for unlimited image generations, with esper Pro. – Web search Ground your requests with search results with any model, or use native web search from providers like Google, xAI, OpenRouter, and more. – Shortcuts Send prompts and attachments to esper from shortcut workflows – Branching Conversations Explore different chat paths and easily toggle between threads. – Privacy-First No analytics, no log storage, no server necessary. esper - Offline & Private AI gives total user control to choose completely offline chats, or connect with their favourite online providers. The choice is yours. – Custom GPTs & Model Swapping Build and edit your own GPTs. Switch models mid-conversation—from Gemini to Claude in a single chat. – Customizable Adjust the interface to match your personal style. Take control of conversations with editing, deleting, or retrying messages. – iCloud Sync Sync conversations across your devices with Pro. – Go Pro Pro gives you unlimited model downloads, local image models, knowledge base access, iCloud Syncing, Kokoro voice model, and optional color themes and animations. If you want an AI chat experience that’s powerful, flexible, and private, esper - Offline & Private AI is built for you.

About

SmartLoop Timer

Features
Read full description

SmartLoop Timer is a next-generation stopwatch designed for repeating time cycles. Unlike ordinary timers, SmartLoop lets you create custom loops with multiple time intervals—such as 5s → 4s → 10s—that repeat automatically and track every completed cycle. Perfect for HIIT workouts, breathing exercises, study sessions, cooking, or lab routines, SmartLoop helps you stay in rhythm and focus effortlessly. Key Features: • Custom loop creation with multiple time segments • Automatic repetition with loop count tracking • Color-coded stages and progress animation • Detailed records for past sessions • Optional sound & vibration alerts • Light/Dark themes for any environment Stay productive, mindful, and in control of your time—one loop at a time.

Screenshots

esper4 screens
SmartLoop Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: SmartLoop Timer at none against esper's 1. esper's advantage is ads (none vs shown) and update cadence (every 10 days vs every 2 months). On price, device support and iOS requirement 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. esper sells 1 one-off in-app purchase. SmartLoop Timer asks for nothing beyond the download.

UpkeepUpdate frequency

esper ships an update every 10 days, SmartLoop Timer every 2 months. The most recent releases landed on September 10, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
esper versus SmartLoop Timer: the parameters behind the verdict, then further details
ParameteresperSmartLoop Timer
PriceFreeFree
Rating4.4 (9 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 10 days — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size163 MB9 MB
Age rating12+4+
DeveloperCody Ingram文睿 李

In-app purchases

1 purchases

esper

One-time1
  • esper Pro$12.99
None

SmartLoop Timer

No in-app purchases

Questions

Is esper free?
esper is free to download, with in-app purchases available.
Is SmartLoop Timer free?
SmartLoop Timer is free to download, with no in-app purchases.
Do esper or SmartLoop Timer have ads?
SmartLoop Timer shows ads; esper does not.
Which is updated more often, esper or SmartLoop Timer?
esper ships an update every 10 days, and SmartLoop Timer every 2 months. Most recently, esper was updated on September 10, 2026 and SmartLoop Timer on September 12, 2026.

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