Bold Smart Lock vs Cool Flame
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bold Smart Lock
Transform your smartphone into a digital key for seamless entry and exit. Grant temporary or permanent access to guests, family, or service providers with customizable virtual keys. Enjoy enhanced security and a simplified daily routine.
- Smartphone as a digital key
- Automatic door unlocking/locking
- Virtual key sharing
- Customizable access permissions
- High-level security
- Easy cylinder replacement
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With Bold, your smartphone is your key. Enter and leave your house with your phone in your pocket; Bold will (auto) unlock and lock your door as you come and go. Having guests over? Share virtual keys with whomever, whenever. Invite people with the Bold app and activate or deactivate their virtual key. You are the digital key master: give your spouse permanent access, let the plumber in Monday morning and the cleaning lady every Friday afternoon. You decide! With the highest level of security (think of digital banking-security), your house is safer than ever before. By just replacing the cylinder, burglars will be unable to enter your house using the common techniques. Bold's simple and elegant design makes your front door look better, your house safer and your life easier.
Cool Flame
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Set the mood in seconds — adjust the flame, pick a colour, and bring the room to life with realistic 3D flames made of cool water mist. WHAT YOU CAN DO • Flame height — raise or lower the water-vapour flame to match the moment. • Light & colour — choose any LED colour and set the brightness. • Colour presets — jump straight to your Favourite or the Default look. • Sound — control the crackling fire sound volume. • Aroma — turn the fragrance dispenser on and set its intensity and interval. • Water level — see at a glance when the tank is running low. • Device info — check serial number, Wi-Fi signal and connection status.
Screenshots
Verdict
Bold Smart Lock and Cool Flame are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Bold Smart Lock | Cool Flame |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 54.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 22 MB |
| Age rating | 4+ | 12+ |
| Developer | Sesam Solutions BV | Planika Sp. z o.o |
In-app purchases
Bold Smart Lock
No in-app purchases
Cool Flame
No in-app purchases









