Comparison

Ember vs SlideKey

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

Head to head
About

Ember

This app allows you to precisely control the temperature of your hot beverages using a smart mug. Customize presets, receive notifications when your drink reaches the perfect temperature, and explore recipes. Personalize your mug settings for an enhanced drinking experience.

Highlights
  • Precise temperature control
  • Save temperature presets
  • Beverage recipes and blogs
  • Customizable notifications
  • Manage multiple mugs
  • Personalize mug settings
Features
Read full description

At Ember®, we use temperature control to change the world in ordinary (and extraordinary) ways. With an Ember Temperature Control Smart Mug and the Ember app, you can transform your mornings by making hot beverages set to your chosen temperature an everyday reality. Our redesigned Ember app is simple, easy to use, and customizable. Whether you are a first-time user or a long-time customer, get ready for a whole new temperature control experience. The Ember app seamlessly pairs with your Ember products to precisely adjust your favorite hot drinks to your preferred drinking temperature, saves temperature presets, offers recipes, sends notifications when your desired drinking temperature has been reached, and more. Ember App Features: - Control the temperature of your beverage down to the degree - Use your previous temperature setting for a set-it-and-forget-it beverage experience - Manage unlimited paired mugs on an all-new Ember home screen - Find recipes and blogs you can save and share with friends and family in the new Explore section - Receive notifications when your preferred temperature has been reached, or your battery is low - Customize presets for multiple beverages and engage timers - Personalize your mugs with names and adjust the color of the smart LED - Easily switch between °C/°F and control sounds and haptic feedback in the redesigned Account section - Access Ember x Health with Apple Health

About

SlideKey

Read full description

You've been staring at the same message for nine minutes. SlideKey writes the reply. It lives in your keyboard, so there's no screenshotting, no switching apps, no pasting anything anywhere. Hold the globe key, pick an energy, tap Generate. One more tap drops it in the chat. FIVE ENERGIES Sassy: witty, teasing, confident. Sweet: warm, genuine, a little cute. Bold: direct, upfront, no hedging. Confident: self-assured, smooth, unhurried. Playful: fun, lighthearted, jokey. Same message, five completely different replies. Pick the one you'd actually send. IT'S A KEYBOARD SlideKey works in every app with a text field: messaging apps, dating apps, the ones you haven't installed yet. Nothing to connect, nothing to set up per app. Copy their message, tap Generate. It answers exactly what they sent. FAST Replies come back in under two seconds and are never longer than fifteen words, because that's how people actually text. WINGMAN (OPTIONAL ADD-ON) Screenshot the chat and Wingman tells you where you stand, what they really meant, and the next message to send. The Closer key writes the ask: a real day, a real plan. Thread memory keeps replies in context and lives only on your phone. Your first game plan is free. NOTHING IS STORED A keyboard sees everything you type, which is exactly why SlideKey keeps none of it. No account, no login, no message history, nothing used for training. iOS prevents any keyboard from reading your conversations. SlideKey sees only what you type or copy, only in the moment you tap Generate. The rest of the time it's a keyboard. HONEST PRICING Three replies free, no card, no signup. After that, a weekly or monthly plan, or pay once for lifetime. Wingman is a separate monthly add-on. There is no other upsell. SlideKey is a confidence boost, not a stand-in. It writes one line, and you decide whether to send it. TERMS & PRIVACY Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://slidekey.app/privacy.html 18+. slidekey.app

Screenshots

Ember4 screens
SlideKey4 screens

Verdict

The call

The clearest difference is in-app purchases: Ember at none against SlideKey's 3. SlideKey's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, 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. SlideKey sells 3 in-app purchases, starting at $4.99 per 7 days. Ember asks for nothing beyond the download.

UpkeepUpdate frequency

Ember ships an update every 2 months, SlideKey every 3 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
Ember versus SlideKey: the parameters behind the verdict, then further details
ParameterEmberSlideKey
PriceFreeFree
Rating3.3 (7.5K ratings) — better—
Positive reviews17.7% of reviews—
Number of ratings7.5K — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS16.616.0 — better
Further details — not scored
Size63 MB9 MB
Age rating4+17+
DeveloperEmber Technologies Inc.New Day Industries LLC

Bugs and requests

Ember

Reported bugs

5 issues
  • App frequently logs users out
  • Mug disconnects from app randomly
  • Firmware update process often fails
  • App doesn't always detect liquid in mug
  • Presets and settings get lost after updates

Requested features

5 requests
  • Battery level indicator on main screen
  • Improved Apple Watch app functionality
  • Wireless charging option
  • Ability to lock temperature settings
  • Automatic temperature adjustment based on volume

SlideKey

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Ember

No in-app purchases

3 purchases

SlideKey

Subscriptions2
  • SlideKey Weekly$4.997 Days
  • SlideKey Monthly$14.991 Month
One-time1
  • SlideKey Lifetime$29.99

Questions

Is Ember free?
Ember is free to download, with no in-app purchases.
Is SlideKey free?
SlideKey is free to download, with in-app purchases available.
Do Ember or SlideKey have ads?
Neither Ember nor SlideKey shows ads.
Which is updated more often, Ember or SlideKey?
Ember ships an update every 2 months, and SlideKey every 3 weeks. Most recently, Ember was updated on October 18, 2026 and SlideKey on October 15, 2026.

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