It seems window shopping on Tinder is becoming as common as scrolling through Instagram, even among those who are off the market.

According to new research, 35 per cent of British people still use dating apps when in a relationship.

Despite the shocking stastistic, one in five of the 2,100 people surveyed by specialist law firm Slater and Gordon said this is just part and parcel of the modern day dating life and they 'wouldn't mind' if their partner used a dating app.

The younger generations seemed even more accepting with two thirds of 16-24 years old admitting they would happily forgive their other-half if they found them checking out other 'options' online.

New research has revealed that 35 percent of British people still use dating apps when in a relationship

Just under half of the men (46 per cent) who were surveyed admitted to using the modern dating tool while in a relationship.

Among the top reasons why they had strayed onto a dating app, ten percent said they were 'bored', nine percent said their 'sex life was dwindling' and seven per cent said they were 'arguing a lot' with their partner.

It seems women are the fairer sex in this instance with just over one in five (21 per cent) saying they have used a dating app behind their partners back, also because they were bored (four per cent), embroiled in lots of arguments (four per cent) or were 'lacking attention' (three per cent).

The new research was conducted after family lawyers noticed an increase in dating apps being cited in divorce proceedings within the last few years and with 74 per cent of those surveyed confirming they would consider divorce if they discovered their partner was on an app, it seems it is a trend that is unlikely to disappear.

One in ten of all those questioned said they would be more inclined to forgive the questionable behaviour if their sex life had become non-existent.

Despite the shocking statistic, one in five people don't mind if their partners use dating apps

And a further ten per cent went as far as to say that speaking to someone on a dating app isn't cheating unless you have physical contact.

Niamh McCarthy, divorce lawyer at Slater and Gordon, said: 'These findings mirror what we have seen during recent divorce proceedings where we have acted for clients.

'Modern technology such as the use of social media and now more recently dating apps, have added yet another potential hurdle for a couple. Having a secret life away from your partner is a temptation which is clearly still dividing opinion.

'Although a large number of people have admitted to using dating apps while in a relationship it's apparent it is not something we are all willing to accept as part and parcel of the modern day dating life.

'Previously these apps wouldn't have been involved in relationships but within the last two to three years we have seen a steady rise in them being referred to in divorce proceedings.'

The research also found one in five of the 2,100 Brits who were surveyed, wouldn't class being on a dating app while in a relationship as cheating.

However, it seems not all agree as 51 per cent said they would dump their partner if they found them fishing online for a new love and would expect their partners to quit dating apps as soon as they became official (50 per cent).

What to do if you think your partner is on a dating app: 1. Think before reacting. 2. Don't react in anger, particularly online. Remember anything published online could be there for life – a post may be deleted in two seconds but another person's screenshot of it won't be. 3. Talk to your partner – understand why they have done what they have. 4. If you find your partner is cheating or talking to another person and talking to them doesn't work, consider marriage counselling and discussing what you are both prepared to accept in your relationship in terms of social media use. 5. If you believe the marriage has broken down or may break down, it is worth considering obtaining independent legal advice to understand your options and protect yourself in the short and long term. Source: Slater and Gordon Advertisement

On the other hand, 16 per cent of men and women who answered the survey said it's acceptable to look around for a new lover before breaking up with the current one, with eight months being identified as the time you can stop trying to rescue a relationship that has turned sour and legitimately start looking for a new one.

When asked what was considered as 'cheating', a quarter said chatting with someone online in a sexual way was not cheating and 10 per cent said you had to be in physical contact to cheat.

But when it comes to sending naked images, 68 per cent said they would struggle to forgive their partner for sharing as the act is 'grubby' or unforgiveable'.

Niamh McCarthy added: 'Since the rise, these apps have been cited as reasons behind a couple's break up- whether the cause of an argument was itself because of the persons own use of the app or social media website, or whether this was a result of what the person has done on the app i.e. from who they are talking to, what they are sharing or what they are getting up to.'

'It has also shaped the way we advise people. Finding out your partner may have been speaking to someone else on a dating app can cause many to react instantly in a public way, via social media. It's imperative the injured party stops to think and tries to discuss the situation before acting. What you do in the public eye could stay there forever.'

Sadly over half (53 per cent) of all those who were surveyed said they had been cheated on in the past and 31 per cent had caught their partner after discovering their secret messages.

A quarter discovered the betrayal after their friend let it slip and one in five caught their cheating partner in the act.

One in five also admitted to being the cheaters with six per cent meeting via a dating app and it appears men are more likely to forgive their other half for being on a dating app (50 per cent), opposed to only 42 per cent of women.

The most forgiving area of the UK is London with 48 percent of residents turning a blind eye to the blip and the least forgiving is Newcastle with 70 percent of residents saying they would dump their partner for the betrayal.

However, 54 percent of 35-44 year olds don't agree and say they would never forgive their partner for being on a dating app, even if they had only just started dating, stopped having a physical relationship or were in a long distance relationship.