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Impress vs Smile Aligners

Starting price, treatment length, supervision, FDA safety record and full spec sheet for Impress and Smile Aligners, side by side. Every figure links to the source that states it.

Prices verified Sep 30, 2026FDA records verified Sep 30, 2026
22comparisons with Impress
9comparisons with Smile Aligners

Impress (Impress clear aligners)·Smile Aligners (DayNight (dual or single arch), NightFit (dual or single arch))

Impress
Hybrid
Smile Aligners
Remote
At a glance
Starting price
$3,499-5,599
£625list £1,025
Typical treatment

Blue marks the lower price only where every compared price is quoted the same way (a monthly price in US dollars); prices quoted in another currency, as a one-time fee or as a provider-set range are shown exactly as stated and never converted. Adverse-event figures are raw counts of reports filed with the FDA, not rates (what the reports mean). Each spec value opens that brand's spec sheet, and its numbered sources verify the specs as a set. None of this is a recommendation: the right choice depends on your case, your budget and, above all, an in-person exam by a dentist or orthodontist.

The bottom line

What actually differs

  • Neither is marked lower, since only monthly prices quoted in US dollars are ranked against each other: Impress $3,499-5,599 and Smile Aligners £625.
  • Typical treatment differs: Impress 3-12 months and Smile Aligners 3-5 months.
  • They differ on oversight: Impress is hybrid (remote care with an in-person clinic option) and Smile Aligners is fully remote (mail-order, reviewed online).
Go deeper

Open the full record

Impress
  • Prices
  • Treatment length
  • Supervision
  • FDA safety
  • Specs
  • Sources
  • Where to get it
Smile Aligners
  • Prices
  • Treatment length
  • Supervision
Keep comparing

Every comparison with these brands

Each brand against every other brand on the market. All comparisons

All 22 comparisons with Impress

  • vs 2USmiles
  • vs Aalto
  • vs Aligner32
  • vs AlignerCo
  • vs Basma
  • vs Candid
  • vs Caspersmile
  • vs Invisalign
InvisibleBraces is an informational data platform, not a dentist, an orthodontist, or a seller of aligners. Nothing here is dental or medical advice, a diagnosis, or a recommendation to start, stop, or change any treatment. At-home clear aligners are not right for every case, and moving teeth without an in-person exam carries real risk. Data is aggregated from public sources and each brand's own terms and can be incomplete or out of date. Always consult a licensed dentist or orthodontist and confirm current prices and terms with the provider.
InvisibleBracesInvisibleBraces

The independent, fully-cited comparison of at-home clear aligner brands. Every figure traces to its source. Informational only, not dental or medical advice.

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3-12 months
3-5 months
Supervision
Hybrid
Remote
FDA safety
No recalls
No recalls
FDA adverse-event reports
0
0
Treatment
Treats
CrowdingSpacing and gapsOverbiteUnderbite
CrowdingSpacing and gapsOverbiteUnderbiteCrossbiteDeep biteRelapse after braces
Product lines
Impress clear aligners
DayNight (dual or single arch), NightFit (dual or single arch)
Wear schedule
Typically 20 to 22 hrs/day; tray-change cadence set per treatment plan (in the US, Invisalign aligners are used and are generally changed about weekly)
All-day (22 hrs) or night-only (10 hrs)
Spec sheet
Start method
In-office at an Impress clinic: oral examination, panoramic X-ray and 3D intraoral scan; if a candidate, a clinician builds the plan
At-home Smile Kit (GBP 39.95) taken on a video call and collected by courier, or a 3D scan at a partner scan centre (price not published)
Material
In the US, Invisalign SmartTrack (Align Technology); Impress does not publish the material name for its own European-produced aligners (Not published)
Not published (described as BPA-free medical-grade plastic; no manufacturer named)
Retainers
Post-treatment retainers offered; in the US, Vivera retainers at $599 for 2 sets with replacement recommended every 6 months; in Germany a retainer subscription from ~EUR 29.17/month
One set of retainers included with every aligner plan; extra sets from GBP 104 for one set
Whitening
Professional whitening offered as a separate line from $30/month in the US; a whitening/bleaching gel is bundled into the German treatment package
A teeth whitening kit is included with the aligner plans
Refinements / touch-ups
Included in the fixed price: additional aligners and refinements needed to reach the planned result are covered with no extra charge
No allowance or price published; the FAQ says extra aligners, if needed, are discussed before any extra cost
Guarantee
Markets a 'Best Invisalign price guaranteed' (US) plus a satisfaction commitment; formal refinement eligibility limits are not clearly published
Full refund of the treatment fee if its dental professionals judge you unsuitable; aligners are non-refundable once production starts; no guarantee of results
Clinical oversight
Doctor-led: in-clinic orthodontists and clinicians (Impress reports ~500 medical professionals) design and monitor each plan, combined with app-based photo check-ins and scheduled clinic visits
Remote: the site says all plans are approved by a GDC-registered dentist but names no dentist and gives no GDC number
Financing
Financing up to 60 monthly instalments, with some options from 0% interest; the US Super Light plan from $81.54/month over 60 months totals $4,892.40, so it is not interest-free
6 instalments through Partial.ly starting with GBP 125, no credit check
HSA / FSA
May be HSA/FSA eligible depending on plan (US)
Not applicable (United Kingdom; US HSA/FSA does not apply)
Insurance
US: coverage depends on the patient's individual dental plan; treatment cost may be offset by orthodontic benefits
Not stated
Availability
US clinics in Chicago, New York, San Francisco and Seattle, plus 130+ clinics across ~8 to 9 countries in Europe (Spain, Italy, Germany, France, UK and others)
United Kingdom (free UK shipping; partner scan centres in London, Edinburgh, Birmingham, Crawley, Plymouth and Manchester)
Headquarters
Barcelona, Spain
London, United Kingdom (registered office: Unit F22 Birch House, Fraser Road, Erith DA8 1QX)
Spec sources
  1. 1.newmouth.com
  2. 2.smile2impress.com
  3. 3.smile2impress.com
  4. 4.smile2impress.com
  1. 1.smilealigners.co.uk
  2. 2.smilealigners.co.uk
  3. 3.smilealigners.co.uk
  4. 4.smilealigners.co.uk
  5. 5.smilealigners.co.uk
  6. 6.smilealigners.co.uk
  7. 7.smilealigners.co.uk
  8. 8.smilealigners.co.uk
  9. 9.smilealigners.co.uk
  10. 10.smilealigners.co.uk
  11. 11.find-and-update.company-information.service.gov.uk
Company
On the market since
2019
2025
Parent company
Impress Group (Smile2Impress SL), privately held, Barcelona
Smile Aligners Ltd (Companies House 16725573, incorporated 17 September 2025), United Kingdom
  • FDA safety
  • Specs
  • Sources
  • Where to get it
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  • vs Smile Perfect
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    • All 9 comparisons with Smile Aligners

    • vs Basma
    • vs Caspersmile
    • vs Impress (this page)
    • vs Invisalign
    • vs Smile Perfect
    • vs Smileie
    • vs SmileWhite
    • vs Straight Teeth Direct
    • vs Toothfairy